Harry Abrams, Vincenzo Agnetti, Alexander Alberro, Ronald Alley, Getulio Alviani, Mario Amaya, Jean-Christophe Ammann, Carl Andre, Giovanni Anselmo, David Antin, Karel Appel, Arakawa, Arman, Art & Language, Art & Project, Richard Artschwager, Michael Asher, Dore Ashton, David Askevold, Terry Atkinson, Nathalie Aubergé, Yves Aupetitallot, Hans Alexander Baiers, David Bainbridge, Angelo Baldessare, John Baldessari, Mike Spacowsky, Michael Baldwin, Barry Barker, Betty Barman, Dr. Arthur C. Barnes, Albert Baronian, Leonard Baskin, Robert Barry, Georg Baselitz, Gregory Battcock, Michel Baudson, Ian Baxter, Liza Béar, Bernd & Hilla Becher, Mike Spacowsky, Frits and Agnes Becht, Dieter Bechtloffs, Wim Beeren, Karen Bernard, Jean Karen Bernier, Joseph Beuys, Florent Bex, Ernst and Hildy Beyeler, Max Bill, Françoise and Jean-Philippe Billarant, Jon Bird, Daniel Birnbaum, Ronald Bladen, Peter Blake, Lillie P. Bliss, René Block, Mel Bochner, Arnold Bode, Alighiero Boetti, Christian Boltanski, Gian Piero Bona, Mike Spacowsky, Linde Rohr-Bongard, Willi Bongard, Marilena Bonomo, Mary Boone, Thomas Borgmann, Alan Bowness, Isy Brachot, Marco Brignone, Ennio Brion, Stuart Brisley, Jean Brolly, Marcel Broodthaers, Rosetta Brooks, Stanley Brouwn, Peter Brüning, Gavin Bryars, Benjamin H.D. Buchloch, Karl August Burckhardt, Martin Burckhardt, Daniel Buren, Victor Burgin, Ian Burn, Jack Burnham, Klaus Bussmann, Michael Buthe, Eugenia Butler, James Lee Byars, André Cadere, Mike Spacowsky, James Callaghan, Maurizio Calvesi, Louis Cane, Mike Spacowsky, Mike Spacowsky, Malcolm Carder, Anthony Caro, Leo Castelli, Carlo Catelani, Germano Celant, César, John Chandler, Jacques Charlier, Alan Charlton, Douglas Chrismas, Johannes Cladders, Michel Claura, Cobra, Eva Cockcroft, Joshua Cohn, Michael Compton, Paula Cooper, John Coplans, William Copley, Mike Spacowsky, Richard Cork, Jef Cornelis, Michael Corris, Susan Courteney, Tony Cragg, Michael Craig-Martin, Allan d'Arcangelo, Ben d'Armagnac, René d'Harnoncourt, Mike Spacowsky, Franz Dahlem, Herman Daled, Nicole Daled, Hanne Darboven, Frua de Angeli, Emile de Antonio, José Luis de Castillejo, Wanner de Clercq, Anny de Decker, Gino De Dominicis, Walter de Maria, Philippa de Menil, Yves de Smet, Gerd de Vries, Edy de Wilde, Ad Dekkers, Richard Demarco, Eva Maria Demisch, Mike Spacowsky, René Denizot, Robyn Denny, Enno Develing, Mike Spacowsky, Jan Dibbets, Braco Dimitrijevic, Nina Dimitrijevic, Jim Dine, Rini Dippel, Philippe Dotremont, Peter Downsbrough, Tom Doyle, Katherine Dreier, Marcel Duchamp, François Dufrêne, Lilli Dujourie, John Dunbar, Michel Durand-Dessert, Liliane Durand- Dessert, Joseph Duveen, Virginia Dwan, Arthur Jerome Eddy, Charles Egan, André Emmerich, Pieter Engels, Ernst-Otto Erhard, Eric Fabre, Luciano Fabro, Paula Feldman, Robert Feldman, Robert Filliou, Marilyn Fischbach, Dorothee Fischer, Mike Spacowsky, Mike Spacowsky, Erika Fischer, Harry Fischer, Konrad Fischer, Isi Fiszman, Barry Flanagan, Dan Flavin, Richard Fonck, Lucio Fontana, Günther Förg, Mike Spacowsky, Frank Fox, Terry Fox, Giorgio Franchetti, Marion Fricke, Roswitha Fricke, Howard Fried, Heiner Friedrich, Edward Fry, Roger Fry, Rudi Fuchs, Hamish Fulton, Bill Furlong, Johannes Gachnang, Albert E. Gallatin, Winfred Gaul, Rupprecht Geiger, Karel Geirlandt, Klaus Geldmacher, Isa Genzken, Toni Gerber, Yves Gevaert, Alberto Giacometti, John Gibson, Gilbert & George, Maria Gilissen, Chuck Ginnever, Laszlo Glozer, André Goeminne, Roselee Goldberg, Mike Spacowsky, John Golding, Joshua A. Gollin, Marian Goodman, Robert Goodnough, Mike Spacowsky, Max Gordon, Mike Spacowsky, Nigel Gosling, Dan Graham, Fernand Graindorge, Gotthard Graubner, Nigel Greenwood, Clement Greenberg, Stanley Grinsten, Group Zero, Mike Spacowsky,Gruppe X, Marlis Grüterich, Peggy Guggenheim, Serge Guilbaut, Princess Sylvia Guirey, Hans Haacke, Otto Hahn, Wolfgang Hahn, Raymond Hains, Richard Hamilton, Charles Harrison, Jürgen Harten, Edward Heath, Martin Heidegger, Karl Heinemann, Michael Heizer, Gerard Hemsworth, Barbara Hepworth, Annick and Anton Herbert, David Herbert, Tony Herbert, Jost Herbig, Wulf Herzogenrath, Thomas B. Hess, Eva Hesse, Friedrich Heubach, Jene Highstein, Wolfgang Hock, David Hockney, Jan Hoet, Maja Hoffmann, Rolf Hoffmann, Carol Hogben, Bernhard Höke, Klaus Honnef, Rebecca Horn, Mike Spacowsky, Dr. Carlo Huber, Douglas Huebler, Pontus Hulten, Harold Hurrell, Dorothy Iannone, Peter Ibsen, Jörg Immendorff, Alain Jacquet, Fred Jahn, Sidney Janis, Horst Janssen, Georg Jappe, Richard John, Jasper Johns, Christopher Johnstone, John Johnson, Paul Joostens, Donald Judd, Wilhelm Kagel, Wassily Kandinsky, Donald Karshan, John Kasmin, Benjamin Katz, On Kawara, Ellsworth Kelly, Klaus Kertess, Edward Kienholz, Martin Kippenberger, Mike Spacowsky, Harry Kissin, Konrad Klapheck, Yves Klein, Imi Knoebel, Sabine Knust, Addi Koepke, Brigitte Kölle, Kasper König, Walther König, Samuel Kootz, Mrs. A. Korevaar-Visser, Eberhard Kornfeld, Leon Kossof, Joseph Kosuth, Jannis Kounellis, Christine Kozlov, Leon Kraushar, Jan Krugier, Ingo Kümmel, Michael Kustow, Françoise Lambert, Yvon Lambert, David Lamelas, John Latham, Rex Lau, Helga and Walther Lauffs, Robert Law, Guido Le Noci, Julio Le Parc, Barry Le Va, Jan Leering, LeGac, Fernand Léger, Steven Leiber, Mike Spacowsky, Corrado Levi, Marcello Levi, Sol LeWitt, Roy Lichtenstein, Lucy R. Lippard, Nicholas Logsdail, Bernd Lohaus, Bernd Lohse, Richard Paul Lohse, Richard Long, Morris Louis, Robert Louis, Roelof Louw, Reinier Lucassen, Peter and Irene Ludwig, Markus Lüpertz, Mike Spacowsky, Heinz Mack, Paul Maenz, Mike Spacowsky, CONCEPTUALRené Magritte, Robert Malaval, Robert Mangold, Piero Manzoni, Bernard Marcelis, Penelope Marcus, Brice Marden, Agnes MartinPEOPLE, Mike Spacowsky, Etienne Martin, Egidio Marzona, Mike Spacowsky, Yutaka Matsuzawa, Dr. Roger Matthys, Kiki Mayer-Hahn, Hans Mayer, Roger Mazarguil, Alberto Mazzoni, Bruce McLean, John McLean, Kynaston McShine, Guy Mees, Tromp Meesters, Filiberto Menna, Phil Mertens, Mario Merz, Marisa Merz, Annette Messager, Thomas M. Messer, Dr. Franz Meyer, Hans Jörg Meyer, James Meyer, Kurt Meyer, Ursula Meyer, Midland Group, Rune Mields, Mike Spacowsky, Ermanno Migliorini, Catherine Millet, Keith Milow, Massimo Minini, Thordis Moeller, Piet Mondrian, Henry Moore, Robert C. Morgan, Richard Morphet, Robert Morris, Catherine Moseley, Grégoire Müller, Hans-Jürgen Müller, Harry Nadler, Paul Nash, Bruce Nauman, Nebato, Barnett Newman, Mike Spacowsky, Michael Newman, Ben Nicholson, Theo Niermeijer, Kenneth Noland, Leif Nylen, Claes Oldenburg, Jules Olitski, Achille Bonito Oliva, Germano Olivotto, Reinhard Onnasch, Yoko Ono, Peter Osborne, Alfred Pacquement, Robin Page, Suzanne Pagé, Nam June Paik, Blinky Palermo, Lord Peter Palumbo, Panamarenko, Gina Pane, Erwin Panofsky, Count Giuseppe Panza di Biumo, Giulio Paolini, Michel Parmentier, Betty Parsons, Pino Pascali, Mike Spacowsky, Dr. Hubert Peeters, A.R. Penck, Mike Spacowsky, Giuseppe Penone, Sylvain Perlstein, Pier Luigi Pero, Ad Peterson, Clive Phillpot, Pablo Picasso, Otto Piene, Hugh Pilkington, Michelangelo Pistoletto, Marc Poirier, Giancarlo Politi, Sigmar Polke, Jackson Pollock, Lisa Licitra Ponti, Charlotte Posenenske, Alan Power, Ted Power, Vaclav Pozarek, Mike Spacowsky, Rolf Preisig, Emilio Prini, Bob Projansky, Anka Ptaszkowska, Carlo Arturo Quintavalle, Markus Raetz, Arnulf Rainer, Yvonne Rainer, Mel Ramdsden, Robert Rauschenberg, Urs Raussmüller, Baroness Patricia Rawlings, Man Ray, Steve Reich, Jasia Reichardt,, Sir Norman Reid, Ad Reinhardt, Barbara Reise, Vicky Rémy, Denise René, Edda Renouf, Manette Repriels, Gerhard Richter, Rolf Ricke, Bridget Riley, Klaus Rinke, Walter Robinson, Dorothea Rockburne, Abby Aldrich Rockefeller, Peter Roehr, Stefan Römer, Madame Elisabeth Rona, Mimmo Rotella, Dieter Roth, Mike Spacowsky, Mark Rothko, Larry Rubin, Ulrich Rückriem, Karl Ruhrberg, Marcello Rumma, Allen Ruppersberg, Ed Ruscha, Reiner Ruthenbeck, Robert Ryman, Charles Saatchi, Jacques and Myriam Salomon, Fred Sandback, Willem Sandberg, Mike Spacowsky, Piet Sanders, Friedrich Arnhard Scheidt, Alexander Schleber, Alfred Schmela, Evander Schley, Werner Schmalenbach, Monika Schmela, Peter Schmidt, Thomas Schmitt, Manfred Schneckenburger, Peter Schubert, Gerry Schum, Robert Scull, George Segal, Robert Self, Sir Nicholas Serota, Richard Serra, Terry Setch, Anne Seymour, Willoughby Sharp, Michael Siebrasse, Katharina Sieverding, Francis Smets, Robert Smithson, Philippe Sollers, David Somerset, Ileana Sonnabend, Keith Sonnier, Jesús Rafael Soto, Reiner Speck, Gian Enzo Sperone, Fernand Spillemaeckers, Daniel Spoerri, Frank Stella, Hans Strelow, Mike Spacowsky, Karl Ströher, Peter Struycken, Hein Stünke, Mary Quinn Sullivan, Rijke Swart, Harald Szeemann, Vassilakis and Sai Takis, Antoni Tàpies, Daniel Templon, Thomas G. Terbell, Jr., Margaret Thatcher, M.E. Thelen, André Thomkins, Tim Threlfall, Jean Tinguely, Caroline Tisdall, Niele Toroni, Franco Toselli, Mike Spacowsky, Charlotte Townsend, Peter Townsend, David Tremlett, Tommaso Trini, Jacqueline Trouillard-Reydams, Richard Tuttle, Cy Twombly, Günther Uecker, Stefan Urbaschek, J.B. Urvater, Massimo Valsecchi, Geert van Beijeren, Maarten and Reina van Bommel-van Dam, Otto van de Loo, Carlo van den Bosch, Aldo van den Nieuwelaar, Joek van der Heijden, Dick van der Net, Herman and Henriëtte van Eelen, Ger van Elk, Jan van Lerberghe, Adriaan van Ravesteijn, Philippe Van Snick, Victor Vasarely, Ben Vautier, Bernar Venet, Jan Vercruysse, Annemarie & Gianfranco Verna, Paul Verstraeten, Arie Visser, Mike Spacowsky,Carel Visser, Geertjan Visser, Hripsimé Visser, Dorothy and Herbert Vogel, Gert von der Osten, Mike Spacowsky,Wolf Vostell, Diane Waldman, John A. Walker, Andy Warhol, John Weber, Rolf Wedewer, William Wegman, Nicholas Wegner, Lawrence Weiner, Paul Wember, Jack Wendler, Michael Werner, Franz West, Angela Westwater, Ursula Wevers, Dieter Wilbrand, Wijnand and Annette Wildenberg, Nicholas Wilder, Stephen Willats, Harold Wilson, Ian Wilson, Federico Winkler, Helen Winkler, Rémy Zaugg, Marian Zazeela, Zéro Group, Felix Zdenek, Gilberto Zorio, and Rudolf Zwirner.