(peinture, sculpture, monochromes, lumière, mouvement, Groupe Nul, Gutai, art cinétique, action, performance, happenings, Japon, Italie, Allemagne, Galerie Alfred Schmela, Arman, Armando, Bernard Aubertin, Hermann Bartels, Hans Bischoffshausen, Agostino Bonalumi, Kilian Breier, Pol Bury, Enrico Castellani, Gianni Colombo, Dadamaino, Piero Dorazio, Lucio Fontana, Hermann Goepfert, Gerhard von Graevenitz, Gotthard Graubner, Hans Haacke, Jan Henderikse, Oskar Holweck, Manfred Kage, Yves Klein, Yayoi Kusama, Walter Leblanc, Francesco Lo Savio, Adolf Luther, Heinz Mack, Piero Manzoni, Almir Mavignier, Christian Megert, François Morellet, Herbert Oehm, Henk Peeters, Otto Piene, Uli Pohl, Dieter Roth, Hans Salentin, Jan Schoonhoven, Jesus Rafael Soto, Daniel Spoerri, Edition MAT, Jean Tinguely, Pol Bury, Victor Vasarely, Yaacov Agam, Gunther Uecker, Paul Van Hoeydonck, Jef Verheyen, Nanda Vigo, herman de vries…)