Exhibition catalogue published in conjunction with show held at the Rheinisches Landesmuseum, Bonn, October 20 - November 27, 1988. Traveled to the Kunstmuseum Winterthur, January 22 - March 19, 1989; and to the Museum Boymans-van Beuningen, Rotterdam, April 30 - June 18, 1989. Written contributions by Klaus Honnef, Dieter Schwarz, and Jan van Adrichem. Includes biography, bibliography, and exhibition history. Printed in color and black-and-white. Text in German.