28 February 1974 - Photograph The cleaning of Guernica by two restorers after Tony Shafrazi's graffiti
New York: Political Art Documentation and Distribution (PAD/D), 1981–1988 - Bulletin 1st Issue and Upfront
Madrid, 24 September 1981 - Conservation documents A work plan to protect and display Guernica and its sketches in the Casón del Buen Retiro, written by the company Cubiertas and Mzov