FRIEDLANDER, Henry. The Origins of Nazi Genocide: From Euthanasia to the Final Solution. Chapel Hill: University of North Carolina Press, 1995. Dostupné online. ISBN978-0-80782-208-1. S. 68. Dále jen „Friedlander“.
SCHAFFT, Gretchen E. From Racism to Genocide: Anthropology in the Third Reich. Urbana a Chicago: University of Illinois Press, 2004. Dostupné online. ISBN978-0-25207-453-0. S. 159–163. Dále jen „Schafft“.
HILBERG, Raul. The Destruction of the European Jews. New York: Holmes & Meier, 1985. Dostupné online. ISBN0-8419-0910-5. S. 225–226.
LIFTON, Robert Jay. The Nazi Doctors: Medical Killing and the Psychology of Genocide. New York: Basic Books, 1986. Dostupné online. ISBN978-0-46504-905-9. S. 141. Dále jen „Lifton“.
PROCTOR, Robert. Racial Hygiene: Medicine under the Nazis. Cambridge: Harvard University Press 1988 s. Dostupné online. ISBN978-0674745780. S. 206–208. Dále jen „Proctor“.
KAY, Alex J. Empire of Destruction: A History of Nazi Mass Killing. New Haven a Londýn: Yale University Press, 2021. Dostupné online. ISBN978-0-300-26253-7. S. 34.
LONGERICH, Peter. Holocaust: The Nazi Persecution and Murder of the Jews. Oxford: Oxford University Press, 2010. Dostupné online. ISBN978-0-19-280436-5. S. 477.