Bengal, 1 October 2006 - Photograph A fibre glass idol is placed in front of a reproduction of Guernica by Pablo Picasso during Durga Puja Festival
Ellen C. Oppler (ed.), <em>Picasso’s Guernica</em>, New York and London: W. W. Norton & Company, 1988, 236–238 - Essay “How Effective Is Social Protest Art? (Vietnam)”
Siracusa, New York, 15 July 1979 - Institutional correspondence Ellen Oppler's letter to Luisa Kreisberg