Oslo, 27 November 1956 - Institutional correspondence A letter from Miguel de Aldasoro to Alberto Martín-Artajo Álvarez
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
Madrid, 10 September 1981 - Internal museum documents Certificate for the reception of Guernica, and its stretcher and related works
Madrid, 7 june 2017 - Audio-sound Politics, affects and artistic practices. Some reflections around Guernica