Whitechapel Art Gallery, 4 October - 1 December 1991; FundaciĆ³n Juan March, Madrid, 10 January - 8 March 1992; Frankfurter Kunstverein, Frankfurt am Main, 28 March - 31 May 1992.
Richard Diebenkorn by Richard Diebenkorn. ISBN 0854880925. Published by Whitechapel Art Gallery in 1991. Publication and catalogue information, links to buy online and reader comments.