David Fraser, Frederick the Great: King of Prussia (2001) online
bundespraesident.de
"Geschichte" (in German). Retrieved 17 January 2024.
bundestag.de
Archived(Date missing) at bundestag.de (Error: unknown archive URL) (PDF)
dhm.de
Peter, Jelena (1 February 2000). "Das Preußische Dreiklassenwahlrecht" [The Prussian Three-Class Franchise]. Deutsches Historisches Museum (in German). Retrieved 3 April 2023.
doi.org
H. M. Scott, "Aping the Great Powers: Frederick the Great and the Defence of Prussia's International Position 1763–86", German History 12#3 (1994) pp. 286–307 online
Clark, Christopher (1996). "Confessional Policy and the Limits of State Action: Frederick William III and the Prussian Church Union 1817-40". The Historical Journal. 39 (4): 985–1004. doi:10.1017/S0018246X00024730. JSTOR2639865. S2CID159976974.
egloos.com
pds21.egloos.com
Henry A. Kissinger, "The white revolutionary: Reflections on Bismarck." Daedalus (1968): 888–924 online Archived 24 June 2021 at the Wayback Machine.
google.de
books.google.de
Markus Reiners: Verwaltungsstrukturreformen in den deutschen Bundesländern. Radikale Reformen auf der Ebene der staatlichen Mittelinstanz. VS Verlag für Sozialwissenschaften, Wiesbaden 2008, ISBN 978-3-531-15774-0, S. 162 (online)
jstor.org
Francis L. Carsten, "The Great Elector and the foundation of the Hohenzollern despotism." English Historical Review 65.255 (1950): 175–202 online.
Clark, Christopher (1996). "Confessional Policy and the Limits of State Action: Frederick William III and the Prussian Church Union 1817-40". The Historical Journal. 39 (4): 985–1004. doi:10.1017/S0018246X00024730. JSTOR2639865. S2CID159976974.
Karl A. Schleunes, "Enlightenment, reform, reaction: the schooling revolution in Prussia." Central European History 12.4 (1979): 315-342 online.
Patrick R. Galloway, Eugene A. Hammel, and Ronald D. Lee, "Fertility decline in Prussia, 1875–1910: A pooled cross-section time series analysis." Population studies 48.1 (1994): 135-158 online.
Clark, Christopher (1996). "Confessional Policy and the Limits of State Action: Frederick William III and the Prussian Church Union 1817-40". The Historical Journal. 39 (4): 985–1004. doi:10.1017/S0018246X00024730. JSTOR2639865. S2CID159976974.
