New York, 7 March 1956 - Institutional correspondence A telegram from Edgar Craig Schenk to Pablo Picasso
Gernika, 6 April and Madrid, 9 April 1987 - Institutional correspondence Correspondence on the Gernika 37-87 commemoration acts
November 23 - 24, 2011 - Conferences and articles Timothy J. Clark. Otra mirada al Guernica (Another look at Guernica)