Там же, с. 146; Brian Evan Kassof, The Knowledge Front: Politics, Ideology, and Economics in the Soviet Book Publishing Industry, 1925–1935, Ph.D. dissertation, University of California, Berkeley, History Department, Fall 2000, с. 461–506; Л. Гронская, Наброски по памяти (М.: Флинта, 2004), с. 55.
