New York, 10 July 1939 - Institutional correspondence Blanche Mahler's letter to Grace L. McCann Morley
2 May 1939 - Internal institutional documents A draft text for the invitation to the exhibition Picasso's Guernica at the Valentine Gallery, New York
<em>New Left Review</em>, London, vol. 27 (May–June 2004): 5–21 - Article “Afflicted Powers: The State, the Spectacle and September 11”