26 March 1988 - Internal museum documents Opinions on the collection of the Centro de Arte Reina Sofía
1988-1992 - Internal museum documents Arranging the Collection: The transfer of Pablo Picasso's Guernica to the Centro de Arte Reina Sofía
1942–1943 - Internal museum documents Dates and centres for the travelling exhibition Picasso: Forty Years of His Art
New York, 14 August 1942 - Internal museum documents Elodie Courter Osborn's letter to Alfred H. Barr Jr.
New York, 20 August 1942 - Internal museum documents Elodie Courter Osborn's letter to Dorothy Dudley
