New York, 20 March 1980 - Internal institutional documents An agreement over the conditions and delivery date of Guernica
New York, 9 September 1981 - Institutional correspondence An internal letter from Richard E. Oldenburg to staff at the Museum of Modern Art, New York
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, 1981 - Internal institutional documents A letter about the exhibition at the Casón del Buen Retiro
Madrid, 10 and 11 April 1987 - Minutes Order of the Offical State Bulletin to create the Advisory Board for the development of the programme Centro de Arte Reina Sofía
3 October 1980 - Internal institutional documents A confidential letter from Spain's Ministry of Culture regarding negotiations for Guernica
1980 - Internal institutional documents Report by the Management Board of Artistic Heritage, Archives and Museums on the moral rights and legislation with regard to Guernica
Madrid, 11 December 1980 - Internal institutional documents Javier Tusell's report on negotiations for the transfer of Guernica
Madrid, 21 October 1981 - Internal institutional documents A technical report on the installation and state of preservation of Guernica
Madrid, 1 June 1981 - Internal institutional documents An internal letter from Javier Tusell to Íñigo Cavero
Madrid, 19 August 1981 - Internal institutional documents A reminder from the general management of Fine Arts, Archives and Libraries regarding the arrival of Guernica to Spain
Madrid, 20 January 1981 - Internal institutional documents A letter from the general management of Fine Art, Archives, and Libraries regarding a conversation held with William Rubin
Madrid, 14 August 1981 - Internal institutional documents A report by SIT for the general management of Fine Art, Archives, and Libraries regarding the transfer of the painting
Internal institutional documents An agreement between the Spanish government and the Museum of Modern Art, New York, drawn up by the Museo del Prado's lawyers