Exhibition catalogue published in conjunction with show held at Städisches Museum Schloß Morsbroich, Leverkusen, Germany, March 3 - April 7, 1968. Traveled to Kunstverein, Berlin, Germany, June 9 - July 7, 1968. Essays by Rolf Gunter Dienst, Rolf Wedewer, Wibke von Bonin, and Dore Ashton. Texts in German.
