New York, 8 May 1956 - Institutional correspondence Carol K. Uht's letter to Petro (Nelly) Van Doesburg
New York, 9 April 1963 - Institutional correspondence Carol K. Uht's letter to Nelson Rockefeller, dated 9 April 1963
New York, 27 August 1968 - Internal institutional documents Carol K. Uht's letter to Nelson Rockefeller, dated 27 August 1968
New York, 24 March 1969 - Institutional correspondence Carol K. Uht's letter to Nelson Rockefeller, dated 24 March 1969
New York, 30 April 1969 - Institutional correspondence Carol K. Uht's letter to Richard Gordon Hatche
Sao Paulo, 25 March 1985 and Madrid, 2 April 1985 - Institutional correspondence The loan of Guernica denied for Brazil exhibition
Madrid, 15 March 1986 - Institutional correspondence Letter from Alfonso E. Pérez Sánchez to Dionisio Hernández Gil
New York and Madrid, June 1988 - Institutional correspondence Correspondence between William Rubin and Alfonso E. Pérez Sánchez
1988-1989 - Institutional correspondence Correspondence related to the Guernica exhibition project at the Museum Boymans-van Beuningen in Rotterdam
August-September 1990 - Institutional correspondence Correspondence on an exhibition project in Hiroshima
Communiqué, Seville, February 1, 2006 - Release ¡otra BIACS ¿será posible?! (another BIACS! will be possible?) and Manifesto
Communiqués, Seville, May 30 and June 30, 2005 - Release ¡otra ¿BIACS? es posible! (another BIACS? is possible!)
Seville, June 23, 2006 - Release Communiqué by the Plataforma de Reflexión sobre Políticas Culturales (Platform of Reflection on Cultural Policies, PRPC)
Seville, July 19, 2006 - Release Communiqué by the Plataforma de Reflexión de Políticas Culturales (Platform of Reflection on Cultural Policies, PRPC)