See Stéphane Barry and Norbert Gualde, La plus grande épidémie de Histoire ("The greatest epidemics in history"), in L'Histoire magazine, n°310, June 2006, p.47 fr
Linn, Ruth. Escaping Auschwitz. A culture of forgetting, Cornell University Press, 2004, p. 20.
Swiebocki, Henryk. "Prisoner Escapes," in Berenbaum, Michael & Gutman, Yisrael (eds). Anatomy of the Auschwitz Death Camp, Indiana University Press and the United States Holocaust Memorial Museum, 1994, p. 505.