1955 - Press release and communication Thirty individual collectors and eight national museums in Europe and the United States contribute paintings for the first Picasso retrospective in Paris since the war
23 May 1955 - Press release and communication A press release on the opening of the exhibition Picasso at the Musée des Arts Décoratifs, Paris
New York, 4 May 1950 - Institutional correspondence Joseph Schwartz's letter to the Museum of Modern Art, New York
<em>The New York Times</em>, New York, November 11, 1990, 1, 39 - Article “When Picasso Spooked the FBI”