Thinking is Form : The Drawings of Joseph Beuys (exhibition New York, The Museum of Modern Art, 21 February - 4 May 1993 ; Los Angeles, The Museum of Contemporary Art, 6 June - 15 August 1993 ; Philadelphia, Philadelphia Museum of Art, 10 october 1993 - 2 January 1994 ; ...(et.al.)). - Temkin, Ann (The Museum of Modern Art, 1993)