Ellsworth Kelly: Paintings and Sculptures 1963 – 1979, Stedelijk Museum, Amsterdam, The Netherlands, December 13, 1979 – February 3, 1980; Hayward Gallery, London, England, February 27 – April 7, 1980; Musée National d’Art Moderne – Centre Georges Pompidou, Paris, France, April 23 – June 15, 1980; Staatliche Kunsthalle, Baden-Baden, Germany, July 5