Adler, Jacob (2001). Jacob Adler: A Life on the Stage: A Memoir. Translated from the Yiddish and with commentary by Lulla Rosenfeld. New York: Applause. Rosenfeld's commentary, p. 259.
Adler/Rosenfeld (2001). Rosenfeld's commentary, p. 260.
Hendrykowski, Marek and Malgorzata (1996). "Yiddish Cinema in Europe," in Geoffrey Nowell-Smith (ed.), The Oxford History of World Cinema. Oxford: Oxford University Press. pp. 174-176; here: 175.