Works on paper (1 work; illus. in col.). Waddington Galleries, London, 1 – 25 Feb. 1989. Bilderstreit: Widerspruch, Einheit und Fragment in der Kuns

Works on paper (1 work; illus. in col.). Waddington Galleries, London, 1 – 25 Feb. 1989. Bilderstreit: Widerspruch, Einheit und Fragment in der Kunst seit 1960 (3 works). Museum Ludwig, Cologne, 8 Apr. – 28 June 1989. Twentieth century works (1 work; illus. in col.). Waddington Galleres, London, 26 Apr. – 20 May 1989. The 1980s: prints from the collection of Joshua P. Smith (2 works; illus.). National Gallery of Art, Washington, 17 Dec. 1989 – 8 Apr. 1990.