Madrid, 24 September 1936 - Institutional correspondence Letter from Josep Renau to Pablo Picasso, 24 September 1936
Paris, 29 September 1945 - Institutional correspondence A letter from the secretary of the Association des Intellectuels italiens in France to Pablo Picasso
9 November 1952 - Newspapers Excellent Paintings Displayed in exhibition of Harrison-Berne; Museum Showing Picasso Prints