22 November 1980 - Institutional correspondence Rafael Fernández Quintanilla's letter to Javier Tusell, dated 22 November 1980
ca. 1952–1956 - Internal museum documents Publicity report for the exhibition Studies for Guernica by Hamline University, addressed to the Travelling Exhibitions Department at the Museum of Modern Art, New York
Museo Nacional Centro de Arte Reina Sofía, Madrid, October 19, 2018 - Interview Francis Frascina in conversation with Lucy Lippard