[Dusseldorf]: Kunstmuseum Düsseldorf, 1990. Hardcover. Green illustrated boards with off-white lettering on front cover, white lettering on spine, 248 pp, profusely illustrated in bw and color. Text in German. Catalog of an exhibition held at the Kunstmuseum Düsseldorf, Sept. 9-Oct. 28, 1990. Includes bibliographical references (pages 237-239)-and indexes. More