(Accessed 31 July 2011) This article incorporates text from the United States Holocaust Memorial Museum, and has been released under the GFDL: Mechelen.
(Accessed 31 July 2011) This article incorporates text from the متحف ذكرى الهولوكوست بالولايات المتحدة, and has been released under the رخصة جنو للوثائق الحرة: Mechelen.