8 July 1937 - Institutional correspondence Paul P. Rogers' letter to the North American Committee to Aid Spanish Democracy
New York: Women Artists in Revolution (W.A.R.), 1971 - Photocopied documents A Documentary Herstory of Women Artists in Revolution
Gerti Fietzek (ed.), Cologne: Buchhandlung Walther König, 2009 - Essay Maria Eichhorn. The Artist's Contract