Madrid, 4 February 1988 - Internal institutional documents Reply from Spain's Ministry of Culture regarding the questions put forward by Andrés Ollero in the Congress of Deputies
Madrid, 7 and 19 January 1981 - Institutional correspondence A letter from Enrique Calduch to Javier Tusell
Paris, 29 September 1945 - Institutional correspondence A letter from the secretary of the Association des Intellectuels italiens in France to Pablo Picasso