Catalogue published fot the exhibition Prospect 71 on October of 1971.

With Vito Acconci, Bas Jan Ader, John Baldessari, Robert Barry, Bernhard and Hilla Becher, Ben, Joseph Beuys, Claus Böhmler, Christian Boltanski, Ian Breakwell, KP Brehmer, Stig Broegger, Marcel Broodthaers, Stanley Brouwn, Victor Burgin, John Chamberlain, Chuck Close, Roger Cutforth, Hanne Darboven, Walter de Maria, Jan Dibbets, Gino De Dominicis, Ger van Elk, Konrad Fischer, Barry Flanagan, Terry Fox, Hollis Frampton, Howard Fried, Hamish Fulton, Gilbert & George, Dan Graham, Nancy Stevenson Graves, Hans Haacke, David Hall, Richard Hamilton, Jürgen Harten, Michael Heizer, John Hilliard, K H Hödicke, Robert Huot, Lee Jaffee, Wolf Knoebel, Ferdinand Kriwet, David Lamelas, John Latham, Barry Le Va, Les Levine, Bruce McLean, Mario Merz, Tony Morgan, Robert Morris, Bruce Nauman, Claes Oldenburg, Dennis Oppenheim, A.R. Penck, Marinella Pirelli Lotto, Brigid Polk, Sigmar Polke, Carl Frederik Reutersward, Gerhard Richter, Klaus Rinke, Peter Roehr, Charles Ross, Ulrich Rückriem, Salvo, Richard Serra, Robert Smithson, Michael Snow, Keith Sonnier, Petr Stembera, Hans Strelow, David Tremlett, Günter Uecker, Wolf Vostell, Franz Erhard Walther, Andy Warhol, William Wegman, Lawrence Weiner.