1975 - Internal institutional documents Report on the exhibition Avanguarda e politica: il caso spagnolo dal 1936 al 1976
Madrid, 22 April 1976 - Internal institutional documents A report by Joaquín de la Puente on the ownership of Guernica and the negotiation possibilities with the Museum of Modern Art, New York
1975 - Internal institutional documents Extract from the index of the catalogue for the exhibition Vanguardia artística y realidad social en el estado español: 1963/1976
