Report, La Sexta Noticias, January 21, 2016 - News programme “Declarados culpables de fiasco económico los gestores de la ‘Bienal de arte’ de Sevilla” (The managers of the Art Biennial of Seville found guilty of a “financial fiasco”)
New York, 23 October 1969 - Institutional correspondence Elizabeth Shaw's letter to William S. Lieberman