Paris, 1955 - Photograph Women working in front of Guernica in the exhibition Picasso at the Musée des Arts Décoratifs
New York, 20 October 1939 - Institutional correspondence Anne Beidberg's letter to Alfred H. Barr Jr.
<em>Newsweek</em>, New York, March 10, 2015 - Article “Mark Lombardi's Art Was Full of Conspiracies — Now His Death Has Become One”