- reaktion 1: Gibbs – Erb – Ruthenbeck – Megert – Carrión – Mölzer – Uecker – Thomkins
- Die Verlaggalerie Leaman, Dusseldorf, 1975
- plastik ring binder, 32 x 26 cm, 94 unpaginated pp
- Ask
- reaktion 1: Gibbs – Erb – Ruthenbeck – Megert – Carrión – Mölzer – Uecker – Thomkins
- Die Verlaggalerie Leaman, Dusseldorf, 1975
- plastik ring binder, 32 x 26 cm, 94 unpaginated pp
- Ask
Michael Gibbs, Leo Erb, Reiner Ruthenbeck, Christian Megert, Ulises Carrión, Milan Mölzer, Günther Uecker and André Thomkins
contexts：
- 29 No News
- Jürgen O. Olbrich, Udo Idelberger
- No Edition, Kassel, 1994 ⁄ printed plastic bag with: a stack of green index cards, glued, held together by black metal clip ⁄ edition 80
- Ask
- Record as artwork: 1959-73
- Germano Celant, Roselee Goldberg
- Royal College of Art, 1973 ⁄ softcover
- Ask
- if p then q : issue 2 Autumn 2008
- James Davies
- if p then q, Manchester, 2008 ⁄ contents with envelope
- Ask
- Schwarze Quadrate / Black Squares. Vorgelegt von presented by Dietrich Helms.
- Dietrich Helms
- Edition Copie, Hannover, 1979 ⁄ softcover with white belly band ⁄ edition 391
- Ask