Produced on the occasion of the exhibition Prozesse: physikalische, biologische, chemische at Haus an der Redoute, Bonn-Bad Godesberg, 21 September–22 October, 1978. Including artists: Michael Badura, Monika Baumgartl, George Brecht, Jan Dibbets, Michael Enneper, Hans Haacke, K.H. Hödicke, Peter Hutchinson, Wolf Kahlen, Wolfgang Mally, Nam June Paik, Klaus Rinke, Dieter Roth (Diter Rot), HA Schult, Helmut Schweizer, Timm Ulrichs and Dorothee von Windheim.

Produced on the occasion of the exhibition, Für Augen und Ohren: von der Spieluhr zum akustischen Environment: Objekte, Installation, Performances in der Akademie der Künste. 20 January–2 March, 1980.

Including the following artists; Laurie Anderson, Joseph Beuys, George Brecht, KP Brehmer, John Cage, Richard Hamilton, Dick Higgins, Joe Jones, Mauricio Kagel, Allan Kaprow, Milan Knizak, Alison Knowles, Jannis Kounellis, Christina Kubisch, Walter Marchetti, Robert Morris, Bruce Nauman, Nam June Paik, Robert Rauschenberg, Man Ray, Erik Satie, Keith Sonnier, Laurie Spiegel, Takis and others.