themes and variations in the history of Weimar and the Third Reich 1918-1945. London, 1996 Town and gown. Ross-On-Wye, 2012 WeimarRepublic. London, 1974
aasta lõpuks sisuliselt kaotanud. Ohvritees Kolb, Eberhard (2005). The WeimarRepublic. New York: Routledge. Lk 140. ISBN 0415344425. Watson, Alexander (2008)
Herf (1984). Reactionary Modernism: Technology, Culture, and Politics in Weimar and the Third Reich. Cambridge: Cambridge University Press. Lk 20–21. ISBN 9780521338332