(EN) Todd Tucker, The Great Starvation Experiment: Ancel Keys and the Men Who Starved for Science, University of Minnesota Press, 2007, p. 146, ISBN 978-0-8166-5161-0.
«Max's advocates made up a diverse cast of characters, from the Jewish Peace Fellowship leader Rabbi Isador Hoffman to the atheist Ancel Keys, who wrote the committee that Max "proved to be a highly reliable and conscientious man who comported himself well under the most rigorous and demanding circumstances."»
