1. Friedlander, H. The origins of Nazi genocide. Chapel Hill, NC: University of North Carolina Press, 1995: 151.
2. Burleigh, M. Death and deliverance. Cambridge: Cambridge University Press, 1995: 149.
3. Sagel-Grande I., Fuchs H., Rüter, C. Heil- und Pflegeanstalt Meseritz-Obrawalde; Justiz und NS-Verbrechen. (Care and nursing institution Meseritz-Obrawalde; Justice and National Socialist Criminal Records.) Vol. XX, 1979 . Amsterdam: University Press Amsterdam, 1979: 700 (in German).