Paris, 28 October 1953 - Institutional correspondence Maria Oliva Fraga's letter to Arturo Profili, dated 28 October 1953
Paris, 5 November 1953 - Institutional correspondence Maria Oliva Fraga's letter to Arturo Profili, dated 5 November 1953
New York, 8 May 1968 - Institutional correspondence Antonio Serrano's letter to Fernando María Castiella
Paris, 17 August 1937 - Newspapers The Dream and Lie of Franco. Picasso's Offering to the Spanish People