^Lange, Bettina (1996). "Gehlen, Arnold". In Brown, Stuart; Collinson, Diané; Wilkinson, Robert (eds.). Biographical Dictionary of Twentieth-Century Philosophers. London and New York: Routledge Reference. pp. 269–270. ISBN 0-415-06043-5. Retrieved 15 December 2021 – via Google Books.
^Clarke, Nicholas (1992). The occult roots of Nazism : secret Aryan cults and their influence on Nazi ideology: the Ariosophists of Austria and Germany, 1890-1935. New York: New York University Press. p. 188. ISBN 9780814730607.
^"Racing legend Ernst Jakob Henne dies". BMW Motorcycle Owners of America, Inc. 24 May 2005. Archived from the original on 20 December 2011. Retrieved 26 December 2021.
^Britannica, The Editors of Encyclopaedia (31 May 2021). "Reinhard Heydrich". Encyclopedia Britannica. Retrieved 16 January 2022.
^Notice de personne "Weitzmann, Kurt (1904-1993)" [Person notice "Weitzmann, Kurt (1904-1993)"] (in French). Bibliothèque nationale de France. 25 September 2019. Retrieved 17 March 2022.
^Notice de personne "Kiesinger, Kurt Georg (1904-1988)" [Person notice "Kiesinger, Kurt Georg (1904-1988)"] (in French). Bibliothèque nationale de France. 18 March 2013. Retrieved 14 February 2022.
^Webb, Adrian (1998). The Longman companion to Germany since 1945. London, England: Longman. p. 268. ISBN 9781317884248.