Exhibition Catalogue published in conjunction with retrospective held February - May 1985. No. 50 of the series "Cahiers de l'Abbaye Sainte-Croix." Includes essays by Didier Semin, Roland Recht, Rainer Michael Mason, in addition to an interview between the artist and Françoise Bruetsch and Didier Moiselet. Also features biography and bibliography. Profuse color illustrations. Text in French with English translations in the back. Inscribed by Didier Moiselet.