CV Ruud Janssen - Jan 2026

Ruud Janssen

Ruud Janssen (born 29 July 1959 in Tilburg) is a Dutch artist, teacher, writer, and publisher renowned for his pioneering work in the international mail art movement since 1980.^[1]Active primarily from Breda, Netherlands, Janssen has organized numerous international mail art projects and published extensively through his TAM-Publications imprint, including magazines such as the TAM-Bulletin, Statements, and IUOMA-magazine.^[1] In 1988, he founded the International Union of Mail-Artists (IUOMA), an online network which by 2018 had grown to over 5,000 members and continues to expand worldwide, fostering global collaboration in the medium.^[1][2]Janssen also established the TAM Rubber Stamp Archive in 1983, curating one of the largest collections of rubberstamp prints in the field, with portions exhibited internationally in venues such as San Francisco (1996), Moscow (2004), and New York (2010).^[1] From 1994 to 2001, he conducted mail-interviews with Fluxus and mail artists using diverse formats like postal mail, email, fax, and in-person meetings, later compiling them into five published volumes in 2008.^[1] His involvement extends to Fluxus performance art as a co-founder of the Fluxus Heidelberg Center alongside Litsa Spathi, where he contributes as a performer and webmaster.^[1]Beyond mail art, Janssen has experimented with electronic communication in the arts since 1985, pioneering bulletin board services, and shifted toward acrylic painting on various surfaces like paper, canvas, and envelopes starting in 2001.^[1] His works, interviews, and publications are held in major international archives dedicated to Fluxus and mail art, and have appeared in books, magazines, and exhibitions across multiple languages including Dutch, English, French, Spanish, Italian, and Russian.^[1]

Biography

Early Life and Education

Ruud Janssen was born on July 29, 1959, in Tilburg, Netherlands.^[3] Growing up in a household where his father used a personalized name stamp for practical purposes, Janssen developed an early fascination with rubber stamps; by age 14, he had saved enough money to purchase his own.^[3] This childhood exposure to stamping as a form of personal expression laid subtle groundwork for his later artistic pursuits, though his formal path initially diverged toward scientific fields.In the early 1980s, Janssen pursued studies in Technical Physics at Eindhoven University of Technology, followed by Physics and Mathematics at the Teachers College in Tilburg, where he obtained qualifications to teach around 1983-1984.^[3] These academic endeavors equipped him with a structured, analytical mindset that would later intersect with his creative interests. Upon completing his education, he transitioned into a teaching role in Tilburg, Netherlands, before relocating to Breda in 2005, where he has resided and worked as an educator since.^[1][3]

Career Development and Influences

Ruud Janssen entered the mail art scene in 1980 while pursuing studies in technical physics at Eindhoven University and physics/mathematics at the Teachers College in Tilburg, Netherlands, where he began experimenting with correspondence as an accessible form of artistic expression and communication.^[3] At age 21, he discovered the Mail Art Network, which allowed him to explore new methods of learning and interacting through stamped mail, aligning with his emerging interest in conceptual art.^[3] By 1983, this led to the establishment of the TAM-Rubberstamp Archive, where he curated an international collection of rubberstamp prints.^[1]Janssen's career was profoundly shaped by influences from the Fluxus movement, including artists such as Joseph Beuys and Nam June Paik, whose emphasis on interdisciplinary performance and everyday materials resonated with his own practices, as well as mail art pioneers like Ray Johnson and Robert Watts, who inspired his focus on networked communication and deconstructed artistic hierarchies.^[3] His scientific background in physics and mathematics informed a conceptual approach to mail art, particularly in systematic documentation and archiving; for instance, in the 1980s, he developed relational databases like "Reflex" to catalog collections, treating artistic output with the precision of empirical data management.^[3]From 1994 to 2001, Janssen shifted his focus toward conducting mail-interviews with Fluxus and mail artists figures using diverse media, reducing other activities to prioritize these dialogues, which were later compiled into publications.^[1] Post-2001, amid the rise of digital communication, he emphasized acrylic paintings on various surfaces like paper, canvas, and envelopes, while adapting correspondences to online platforms, including the online Ning platform for the IUOMA, which he launched in 2008, building on its founding in 1988.^[3][1] As a teacher of physics and mathematics, Janssen integrated art into education through workshops and performances involving rubberstamps and eraser carving, fostering creative experimentation among students.^[3] In 2005, he relocated from Tilburg to Breda, Netherlands, where he established a dedicated studio and expanded his personal archive, enabling greater immersion in his multifaceted practice.^[3]

Mail Art Contributions

International Projects and Collaborations

Ruud Janssen organized numerous international mail art projects beginning in the early 1980s, fostering global exchanges among artists through open calls and collaborative initiatives. One early example was the 1983 Snip-Xerox-Project, which invited participants to contribute photocopied snippets for compilation and distribution, exemplifying his emphasis on accessible, reproducible media in mail art networks.^[1] In 1983, he also assumed curatorship of the world's largest collection of rubber stamp prints, sparking international rubber stamp exchanges that drew contributions from artists worldwide and led to exhibitions in venues such as San Francisco in 1996, Moscow in 2004, and New York in 2010.^[4][1]Throughout the 1980s and 1990s, Janssen participated in key events like the 1986 Mail Art Congress in Amsterdam, where he networked with global practitioners to promote decentralized art distribution. His collaborations extended to prominent figures including Belgian artist Guy Bleus and Italian mail artist Vittore Baroni, involving mutual exchanges of works and correspondence that built enduring connections across Europe and beyond; these interactions resulted in Janssen receiving thousands of mail art pieces for his archives.^[5] Themed calls, such as international postcard series and "Direct Mail" initiatives, further exemplified his community-building efforts, encouraging thematic submissions on topics like migration and visual poetry to create shared, borderless archives.^[1]Post-2000, Janssen adapted his analog projects to digital formats, integrating email and online platforms while retaining tactile elements like scanned originals; this evolution preserved the essence of mail art amid declining postal usage, with his 1996 online anthology serving as a foundational digital repository updated through the 2000s.^[4] A notable culmination was his 1997 solo exhibition at the E-Mail Art Archives in Hasselt, Belgium, which showcased outcomes from these international collaborations, including integrated project materials from rubber stamp exchanges and themed calls.^[6] These efforts directly influenced the founding of the International Union of Mail-Artists (IUOMA) in 1988 as a structured outgrowth of his project networks.^[1]

Mail-Interview Project

The Mail-Interview Project, initiated by Ruud Janssen in October 1994, represented a systematic effort to document the perspectives of prominent mail artists and Fluxus figures through iterative correspondence. Over the course of its primary run until 2001, with some extensions to 2007, Janssen conducted 66 in-depth interviews, inviting participants via personalized cards and engaging in sequential exchanges of 8 to 12 questions each. The methodology emphasized the experimental spirit of mail art by incorporating diverse formats, including traditional postal mail with enclosures like artwork and stamps, fax transmissions, email for faster dialogues, and occasional in-person or telephone discussions transcribed by Janssen; this structure allowed for question-response cycles that unfolded over months or years, capturing not only textual answers but also the tactile and visual elements of the communication process.^[7][5]Notable interviewees included Belgian artist Guy Bleus, American mail art historian John Held Jr., and Canadian performance artist Anna Banana, alongside figures such as Dick Higgins, Ray Johnson (whose brief visual responses were published posthumously following his 1995 death), and international participants like Yugoslav artist Dobrica Kamperelic and Uruguayan Clemente Padin. Themes explored in these dialogues centered on foundational questions like "What is mail art?" and delved into personal histories, including entry points into the network (e.g., via festivals or pseudonyms), influences from Dada and Fluxus, archiving challenges, socio-political contexts such as wartime sanctions in Yugoslavia, gender dynamics, and the evolving impact of digital technologies on traditional correspondence. Janssen, serving as interviewer, meticulously retyped responses, proofread with participants, and incorporated enclosures to preserve the authenticity of exchanges, often prioritizing slower media like snail mail to highlight mail art's sensory qualities over digital efficiency.^[8][5][7]Publications from the project began as individual TAM-produced booklets between 1994 and 2001, with two versions per interview: a compact text-only edition for broad distribution and an extended illustrated format limited to subscribers and participants, priced at around 3 USD to cover minimal costs while adhering to mail art's non-commercial ethos. In 2008, Janssen compiled selections into five paperback volumes—Mail-Interviews Part 1 (16 interviews), Part 2 (12 interviews), Part 3 (10 interviews), Part 4 (21 interviews), and Part 5 (7 interviews)—each reprinting historic dialogues with added visuals and a newsletter explaining the project's process, making them available via platforms like Lulu.com. Full texts became accessible online starting in 1995 through ASCII email distributions and later websites, with many archived digitally for free public access.^[6][9][8]The project's enduring impact lies in its role as a vital archive of oral histories within the ephemeral mail art community, capturing diverse voices from over 30 countries and preserving insights into the network's democratic, collaborative essence amid global shifts like the internet's rise and political upheavals. By personally funding and editing the outputs—often at the expense of his teaching workload—Janssen not only documented but also facilitated ongoing dialogues, with some participants reciprocating by interviewing him, thereby reinforcing mail art's emphasis on mutual exchange and historical continuity.^[5][7]

Key Organizations and Initiatives

TAM-Publications

TAM-Publications was founded by Ruud Janssen in 1980, coinciding with the beginning of his career as a teacher and his initial explorations in mail art.^[10] The imprint's name originated as an acronym for "Travelling Art Mail," reflecting Janssen's early focus on the mobile, networked nature of mail art exchanges, though it later acquired playful alternative interpretations such as "Tilburg's Academy of Mail-Art" to parody official institutions.^[10] Based in Breda, Netherlands, TAM-Publications has served as a dedicated outlet for disseminating mail art materials, emphasizing affordable production methods like rubber stamping, photocopying, and offset printing to ensure wide accessibility within the global artist community.^[11]The scope of TAM-Publications encompasses mail art magazines, project catalogs, and booklets that document and promote the movement's history, techniques, and participants. Key outputs include periodicals such as the TAM-Bulletin and Statements, which feature artist contributions and network updates, as well as retrospective booklets like 25 Years in Mail-Art (2007), a compilation of biographical materials chronicling Janssen's two-and-a-half decades in the field.^[12][13] These publications prioritize low-cost, DIY aesthetics, often incorporating stamped designs and ephemeral elements to mirror the tactile, postal essence of mail art.^[11]A core aspect of TAM-Publications involves its integration with the TAM Rubber Stamp Archive, established by Janssen in 1983 as the world's largest collection of rubber stamp prints. This archive informs the imprint's outputs by providing content for publishing stamp designs, artist directories, and catalogs that highlight rubber stamping's role in Fluxus and mail art subversion of official postal systems.^[12][11] Exhibitions of the archive, such as those in San Francisco (1996) and New York (2010), have further amplified the publications' reach.^[12]TAM-Publications remains active, having produced over 100 items since its inception, including collaborative works with international artists like John Held Jr. on titles such as Small Scale Subversion: Mail-Art and Artistamps (2015).^[11] These efforts extend to supporting broader networks, such as producing promotional materials for the International Union of Mail-Artists (IUOMA).^[1]

International Union of Mail-Artists (IUOMA)

The International Union of Mail-Artists (IUOMA) was founded in 1988 by Ruud Janssen, a Dutch mail artist active in the network since 1980, with the aim of uniting global participants in mail art through collaborative exchanges and documentation.^[14] Initially operating via physical correspondence and newsletters—often overlapping with Janssen's TAM-Publications for distribution—the organization grew rapidly, reaching nearly 800 members by 2008 and expanding to nearly 2,000 active mail artists worldwide by providing a centralized hub for networking and project coordination.^[14][1] This expansion was fueled by events such as decentralized worldwide networker congresses, which began in the early 1990s and encouraged simultaneous, location-independent gatherings to foster international dialogue without centralized logistics.^[15]In the early 2000s, IUOMA launched its website at iuoma.org, transitioning from analog methods to digital infrastructure that included member directories, discussion forums, and archives to catalog mail art contributions and replace diminishing physical mail volumes.^[16] This platform, further enhanced in 2008 with a Ning-based social network, served as a global community hub, enabling real-time sharing of projects, addresses, and visual documentation while preserving the ethos of open-access mail art.^[3] By the 2010s, IUOMA adapted to digital mail art forms, incorporating online exhibitions, AI-generated imagery prompts, and virtual calls for entries, which sustained engagement amid declining traditional postal use and grew membership to thousands, with the 5,000th member joining in 2018.^[17][14]Central to IUOMA's archival role is Janssen's curatorship of the TAM-Rubberstamp Archive, initiated in 1983 and integrated into the union's activities, housing custom rubber stamps, prints, artistamps, and related literature from contributors worldwide.^[14] This ongoing collection documents the evolution of rubberstamp art within mail networks, with digital catalogs on iuoma.org making portions accessible for research and inspiration, ensuring the preservation of ephemeral works. Annual events, including congresses and themed project deadlines extending into 2026, continue to drive participation, blending physical submissions with online coordination.^[18][17]

Fluxus Heidelberg Center

The Fluxus Heidelberg Center was established in July 2003 in Heidelberg, Germany, by Ruud Janssen and Litsa Spathi, with the primary purpose of collecting, preserving, and interpreting materials related to the Fluxus movement.^[19][3] The initiative stemmed from Spathi's interest in Fluxus, leading to collaborative efforts to build an archive that extends the movement's experimental legacy into contemporary contexts.^[16]The center's collection encompasses Fluxus artifacts, performance scores, and ephemera, serving as a resource for ongoing research and artistic practice.^[1] Between 2003 and 2005, Janssen and Spathi organized a series of performances under the Fluxus Heidelberg banner, incorporating digital tools to explore intermedia and chance-based actions in line with Fluxus principles.^[20] These events are documented in the joint publication Performances Fluxus Heidelberg 2003-2005, which provides an overview of the activities and their conceptual underpinnings.^[21]Janssen and Spathi produced several joint publications through the center, including booklets and catalogs on Fluxus themes, such as Fluxus Heidelberg Videos (2009) and Fluxus Videos Technical Details: 2006-2008 (2011), which highlight performance documentation and historical interpretations.^[22] The center's website, fluxusheidelberg.org, offers digital access to these materials, along with archives of events, biographies, and related news, facilitating global engagement with Fluxus.^[23]In his role as co-founder, curator, and performer, Janssen linked the center's work to broader discussions of Fluxus's evolution, contributing essays like his statement in Visible Language 40.1: Fluxus After Fluxus (2006), where he described Fluxus as "a constantly evolving idea that is quite alive" and selected writings on "New Fluxus" concepts.^[20]

Artistic Works and Exhibitions

Visual Art and Rubber Stamp Creations

Ruud Janssen's visual art primarily revolves around rubber stamp creations, which he began producing in earnest from 1983 onward, designing custom stamps that served as both functional tools and artistic expressions in his mail art projects. These stamps often featured themes of absurdity, textual fragments, and geometric patterns, drawing from his background in physics to incorporate motifs like waves, particles, and abstract diagrams that blurred the lines between science and whimsy. For instance, Janssen created stamps depicting nonsensical phrases or simple icons, such as a stylized envelope or fragmented letters, which he used to personalize correspondence and challenge conventional notions of communication.^[1]In the early 2000s, Janssen shifted toward acrylic paintings, marking a transition from ephemeral mail art to more permanent, gallery-oriented works. Post-2001, his paintings adopted an abstract style with vibrant colors and layered compositions that explored tensions between digital and analog media, often incorporating stamped elements or motifs reminiscent of his earlier stamp designs. Examples include series of canvases featuring bold geometric forms and textual overlays, inspired by personal correspondences and the visual language of mail art, reflecting a conceptual evolution toward themes of connectivity and fragmentation in a networked world.^[1]Janssen's assemblages represent another key facet of his visual output, comprising mixed-media pieces assembled from mail art components since the 1980s, with an extensive collection documented in his archives. These creations typically integrate rubber stamps, hand-drawn elements, found objects like postcards or envelopes, and low-tech printing techniques to form collage-like structures that emphasize tactility and impermanence. By combining stamped impressions with adhesive fragments and ink washes, Janssen transformed everyday ephemera into cohesive artistic statements, promoting stamping as a democratic, accessible form of expression that democratized art production beyond elite galleries. His techniques evolved from purely mail-specific applications—such as imprinting stamps directly onto envelopes—to more refined, exhibition-ready assemblages that retained their raw, experimental ethos.^[1]

Exhibitions

Janssen's works, particularly his rubber stamp creations and the TAM Rubber Stamp Archive, have been exhibited internationally. Notable venues include San Francisco in 1996, Moscow in 2004, and New York in 2010, where portions of his extensive collection of rubberstamp prints were displayed, highlighting the global reach and archival significance of his contributions to mail art.^[1]

Publications and Essays

Ruud Janssen has produced a significant body of written work that documents and theorizes the mail art movement, emphasizing its ephemeral nature and collaborative essence through interviews, statements, and retrospective analyses. His publications, primarily issued under his TAM-Publications imprint, serve as archival resources that capture the dialogic and networked character of mail art, transforming personal correspondences into accessible texts for broader audiences. These writings highlight themes of communication across mediums—from physical mail to digital exchanges—and the evolution of artistic networks in response to technological shifts.^[24]One of Janssen's early key publications is The E-mail Interview with Guy Bleus (1998), a collaborative dialogue exploring the transition of mail art from traditional surface mail to cyberspace. Conducted via email, the interview with Belgian mail artist Guy Bleus delves into how digital tools altered the movement's accessibility and global reach, while preserving its core principles of exchange and anti-institutionalism. Published by Ragged Edge Press in New York, this work exemplifies Janssen's interest in interviews as performative, collaborative texts that document the movement's adaptability.^[25]In 2009, Janssen compiled the Mail-Art Statements Collection, a volume gathering statements from numerous international mail artists on the philosophy and practice of the genre. This anthology underscores the diversity of perspectives within mail art, from its roots in Fluxus to its role in fostering non-commercial artistic communities, providing a theoretical foundation for understanding the movement's ideological underpinnings. Issued by TAM-Publications in Breda, Netherlands (ISBN: 9781447576297 for the e-book edition), the collection functions as a documentary resource, emphasizing the ephemerality of mail art by preserving artists' voices in print.Janssen's most extensive written project is the Mail-Interviews series, published in five parts between 2008 and 2010 by TAM-Publications. These volumes compile over 100 interviews conducted via mail, fax, email, and in-person meetings with prominent figures in mail art and Fluxus, including Dick Higgins, Ray Johnson, and Ken Friedman, spanning from 1994 to 2007. Each interview is presented as a standalone booklet within the collections, treating the exchanges as collaborative artworks that capture interruptions, such as artists' deaths mid-conversation, to reflect the unpredictable nature of networked art. For instance, Mail-Interviews Part 1 (ISBN: 9781447563310) features 16 interviews that explore personal histories and the impact of the internet on mail art communities, serving as both historical documentation and theoretical inquiry into ephemeral interactions. The series totals over 2,000 pages, prioritizing seminal dialogues that illustrate mail art's evolution without exhaustive listings.^[26][27]Complementing these, 25 Years in Mail-Art (2008) offers a retrospective overview of Janssen's own trajectory in the movement since 1980, blending biographical reflections with analyses of key projects like the founding of the International Union of Mail-Artists (IUOMA). Published by TAM-Publications in Breda, this book documents the growth of mail art networks through personal anecdotes and thematic essays, highlighting its role in connecting isolated artists globally and its enduring conceptual significance.^[13]Beyond books, Janssen contributed the essay "Networking Interaction" to the special issue Fluxus After Fluxus in Visible Language (Vol. 40, No. 1, 2006), where he was selected as one of twelve contemporary artists reinterpreting Fluxus's legacy. In this piece, Janssen discusses his mail art practice as an ongoing, interactive evolution of Fluxus principles, focusing on projects like the Mail-Interview initiative and IUOMA as living networks rather than historical artifacts. The essay emphasizes communication as a core artistic form, aligning with Fluxus's anti-hierarchical ethos while addressing digital influences.^[20]Janssen has also authored numerous articles in his TAM magazines, such as the TAM-Bulletin, which chronicle the history of mail art through archival overviews and participant reflections. These pieces, often illustrated with correspondence excerpts, provide concise histories of the movement's development, prioritizing conceptual milestones like international collaborations over chronological exhaustiveness.^[28]

Legacy and Recognition

Impact on Fluxus and Mail Art

Ruud Janssen played a pivotal role in preserving the historical record of mail art through his extensive archives, which house correspondence, artworks, and ephemera from global participants. This collection, maintained at the Fluxus Heidelberg Center, has ensured that the ephemeral nature of mail art—often lost to postal systems or personal collections—remains accessible for study and inspiration. By digitizing portions of these archives in the 2000s, Janssen facilitated their survival amid declining physical mail usage, providing a foundational resource for researchers and artists. His mentorship within the International Union of Mail-Artists (IUOMA), which he founded in 1988 and which grew to over 5,000 members worldwide as of 2018, extended this preservation effort by guiding younger artists in sustaining the medium's traditions, fostering intergenerational knowledge transfer.^[17]As a key figure in "New Fluxus," Janssen bridged the movement's 1960s origins—rooted in anti-art and performance by pioneers like George Maciunas—with contemporary interpretations that emphasize accessibility and community. Through the Fluxus Heidelberg Center, which he co-founded in 2003 with Litsa Spathi, he curated events and publications that reinterpreted Fluxus principles in mail art contexts, promoting collaborative, non-commercial exchanges over institutional gatekeeping. His essays, such as those exploring Fluxus's evolution into networked art forms, underscored how mail art extended Fluxus's democratizing ethos into the late 20th century, influencing artists to adapt its playful, interrogative spirit to new media. This bridging role helped sustain Fluxus's vitality, positioning Janssen as a custodian who adapted its core ideas to evolving artistic landscapes without diluting their radical intent.^[16]Janssen's documentation of mail art's digital transition from the 2000s onward highlighted the shift from purely analog exchanges to hybrid forms incorporating email, scans, and online platforms, preserving the movement's communal essence in a post-postal era. His archives and IUOMA activities captured this evolution, showing how artists integrated digital tools while retaining tactile elements like rubber stamps, thus addressing gaps in understanding post-2010 adaptations. By founding networks like IUOMA, which grew to include thousands of members worldwide, Janssen sustained mail art communities against the backdrop of diminishing postal infrastructure, enabling ongoing global participation and cultural relevance. This community-building ensured mail art's endurance as a viable, inclusive practice, with IUOMA's forums continuing to connect participants across digital divides.

Exhibitions and Academic Contributions

Janssen's exhibition history reflects his deep involvement in mail art and Fluxus networks, with notable solo and group shows spanning decades. In 1997, he held a solo exhibition at the E-Mail Art Archives in Hasselt, Belgium, featuring booklets from his Mail-Interview Project that documented conversations with prominent mail artists.^[6] His curatorial work with the TAM Rubber Stamp Archive has led to international displays of his extensive collection of rubberstamp prints, including exhibitions at the San Francisco Center for the Book in 1996, the Moscow Museum of Modern Art in 2004, and Printed Matter in New York in 2010.^[1] Additionally, Janssen participated in Fluxus-related performances and shows through the Fluxus Heidelberg Center, which he co-founded in 2003 with Litsa Spathi; these included events in Heidelberg from 2003 to 2005, documented in a dedicated publication.^[29][16]Beyond exhibitions, Janssen has made significant academic contributions through writings and educational integrations of mail art. He was invited to the Mail Art Congress in Eeklo, Belgium, in 1986, where he engaged with global practitioners on the medium's democratic potential.^[30] As a teacher in the Netherlands, Janssen incorporated mail art into curricula at institutions like the Teachers College in Tilburg, emphasizing its role in fostering international collaboration among students. His scholarly output includes an essay selected for publication in the special Fluxus issue of Visible Language (vol. 26, nos. 1/2, 1992), where he was one of eleven contemporary artists invited to reflect on Fluxus's ongoing relevance. This piece, alongside his Mail-Interview Project—comprising over 300 interviews with Fluxus and mail art figures conducted via various media from 1994 to 2001—highlights his analytical approach to the networks' evolution, with the interviews compiled into five books in 2008.^[6]Janssen's recognitions underscore his curatorial and archival influence within these communities. He has been acknowledged as a "New Fluxus" artist through his essay inclusion in Visible Language and his role in curating the Fluxus Heidelberg Center's collection of historical materials. Community honors via the International Union of Mail-Artists (IUOMA), which he founded in 1988, include ongoing acknowledgments of his pioneering use of digital platforms for mail art documentation since the 2000s, bridging analog traditions with online archives. Post-2008, his works appeared in digital art shows, such as virtual exhibitions on the IUOMA platform, extending mail art's reach into contemporary networked spaces.^[1]

References

1. https://www.lomholtmailartarchive.dk/networkers/ruud-janssen
2. https://iuoma-network.ning.com
3. https://stendhalgallery.com/?page_id=3521
4. https://www.artwanted.com/iuoma/bio/
5. https://acervo.mailart.pt/matter/dwn/interview/Mail-Interview%20Project%20by%20Ruud%20Janssen%20-%20Part%203/Mail-Interview%20Project%20by%20Ruud%20Janssen%20-%20Part%203.pdf
6. https://www.academia.edu/6764964/Mail_Interview_Project_by_Ruud_Janssen_Part_1
7. https://geocities.ws/stamplink/JCM/library/tam/tam_intr.htm
8. https://www.lulu.com/shop/ruud-janssen/mail-interviews-part-3/paperback/product-2733098.html
9. https://www.lulu.com/shop/ruud-janssen/mail-interviews-part-1/paperback/product-2663836.html
10. https://geocities.ws/stamplink/JCM/library/tam/tam_rj1.htm
11. http://tampublications.blogspot.com/
12. https://independent.academia.edu/JanssenR/CurriculumVitae
13. https://www.lulu.com/shop/ruud-janssen/25-years-in-mail-art/paperback/product-1rw2r7g.html
14. https://www.academia.edu/6738498/IUOMA_1988_2008
15. https://www.academia.edu/10918642/DECENTRALIZED_WORLD_WIDE_NETWORKER_CONGRESS_DNC_92_
16. https://www.academia.edu/6739422/25_YEARS_in_Mail_Art_overview_for_Ruud_Janssens_activities_2005
17. https://iuoma-network.ning.com/
18. https://www.artpool.hu/MailArt/chrono/DWNC92.html
19. https://www.facebook.com/fluxusheidelbergcenter/
20. https://monoskop.org/images/3/3b/Visible_Language_40_1_Fluxus_After_Fluxus_2006.pdf
21. http://www.lulu.com/shop/ruud-janssen-and-litsa-spathi/performances-fluxus-heidelberg-2003-2005/paperback/product-174dwn8.html
22. http://www.lulu.com/spotlight/fluxusheidelberg
23. http://fluxusheidelbergcenter.blogspot.com/
24. https://www.lulu.com/spotlight/iuoma
25. https://www.raggededgepress.com/PDF/Guy_Bleus.pdf
26. https://www.lulu.com/shop/ruud-janssen/mail-interviews-part-1/ebook/product-17gddk2q.html
27. https://academia.edu/6764964/Mail_Interview_Project_by_Ruud_Janssen_Part_1
28. https://www.academia.edu/13554624/The_TAM_Rubberstamp_Archive_History_Fluxus_Mail_Art_and_Rubberstamps
29. https://www.lulu.com/shop/ruud-janssen-and-litsa-spathi/performances-fluxus-heidelberg-2003-2005/paperback/product-174dwn8.html
30. https://www.facebook.com/groups/576606776278891/posts/1262995180973377/