- Keith Sonnier
- Abaca-Code
- Galerie Denise René Hans Mayer, Düsseldorf, 1976
- folding card
-
subject：
1970-79, printed matter
-
Ask
- Keith Sonnier
- Abaca-Code
- Galerie Denise René Hans Mayer, Düsseldorf, 1976
- folding card
-
subject：
1970-79, printed matter
-
Ask
- Prospect 71 Projection
- Konrad Fischer / Jürgen Harten / Hans Strelow
-
Art-Press Verlag, 1971 ⁄ soft cover
- Ask
- Studio International: July/August 1970
- Seth Siegelaub, David Antin, Germano Celant, Michel Claura, Charles Harrison, Lucy R. Lippard, Hans Strelow
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Studio International, London, 1970 ⁄ softcover
- Ask
- SOTO 21.Mai – 30.Juni Kunsthalle Bern
- Denise René, Jesus Raphael SOTO, Paul Wember, Guy Brett
-
Kunsthalle Bern, 1968 ⁄ folding. newspaper format
- Ask
- Information
- Kynaston McShine, Lucy R. Lippard
-
Museum of Modern Art New York, 1970 ⁄ softcover
- Ask
