2 March 1974 - Institutional correspondence A letter from Karl Denim, S. S. Kush and Joshua Jericho in defence of Tony Shafrazi
Paris, 10 December 1975 - Institutional correspondence Miguel de Lojendio's letter to Spain's Ministry of Culture
Estudios sobre el mensaje periodístico, vol. 16, 2010 - Magazines «This is not Guernica…» Press photos from the destruction of Guernica during Spanish Civil War