Morgenstern, Hans (2009). "Forst, Grete", Jüdisches biographisches Lexikon, p. 238. LIT Verlag Münster. ISBN 3700007035. This information also appears on a List of murdered Jews from Austria found in Namentliche Erfassung der oesterreichischen Holocaustopfer, Dokumentationsarchiv des oesterreichischen Widerstandes (Documentation Centre for Austrian Resistance), Wien. She is listed under her married name: Margarete Schuschny.
