New York, 9 September 1981 - Institutional correspondence An internal letter from Richard E. Oldenburg to staff at the Museum of Modern Art, New York
New York, 24 March 1980 - Institutional correspondence A letter from Richard Oldenburg and William Rubin to Javier Tusell
London, 31 May 2009 - Photograph A group of tourists strike a pose in front of a replica of Guernica during the event "A Taste of Spain"