Paris, 1955 - Photograph Women working in front of Guernica in the exhibition Picasso at the Musée des Arts Décoratifs
New York, 9 September 1939 - Institutional correspondence John Sherman's letter to Marcelene Peterson
ca. 1981 - Newspapers The Guernica Imbroglio. Al international Tug-of-War over Picasso's Protest Painting