Exhibition catalogue published in conjunction with an exhibition at the Museum Ludwig, Koln from March 30, 1983 - May 6, 1984 and Kunsthalle Bern from June 15 - August 15, 1984 . Texts by Evelyn Weiss and Jean-Hubert Martin in English and German. Includes black-and-white illustrations, a lengthy biography, exhibition chronology, and bibliographies.