Paris, 3 November 1980 - Institutional correspondence Dominique Bozo's letter to Josep Lluís Sert, dated 3 November 1980
Paris, 23 December 1980 - Institutional correspondence Dominique Bozo's letter to Josep Lluís Sert, dated 23 December 1980
New York, 20 March 1980 - Internal institutional documents An agreement to deliver Guernica to the Spanish government
Paris, 22 November 1980 - Personal correspondence Rafael Fernández Quintanilla’s secret dispatch to Javier Tusell, director-general of Fine Arts