Karađorđević dynasty (English Wikipedia)

Singleton 1985, p. 77. Singleton, Frederick Bernard (1985). A Short History of the Yugoslav Peoples. New York: Cambridge University Press. ISBN 978-0-521-27485-2.
Rehm 1992, p. 392. Rehm, Brendon A. (1992). "Karageorge". In Dupuy, Trevor Nevitt; Johnson, Curt; Bongard, David L. (eds.). The Harper Encyclopedia of Military Biography. New York: Harper Collins. p. 392. ISBN 978-0-78580-437-6.

books.google.com

"Crown Prince Petar Karađorđević Abdicates In Favour Of Prince Philip". cordmagazine.com. 29 April 2022. Archived from the original on 8 May 2022. Retrieved 1 May 2022.

"Princ Petar saopštio da je abdicirao u korist brata Filipa". danas.rs. 28 April 2022. Archived from the original on 1 May 2022. Retrieved 1 May 2022.

"Crown Prince Alexander II: the man who would be king of Serbia". Telegraph.co.uk. Archived from the original on 12 January 2022. Retrieved 6 July 2017.

McKinsey, Kitty (27 June 1997). "Kings Try for Comeback". San Francisco Chronicle. Archived from the original on 13 November 2007.
Luxmoore, Jonathan (8 December 2003). "Serbian Orthodox Leader Calls For Monarchy To Be Reintroduced". Ecumenical News International. Archived from the original on 10 October 2006.
"Enlarged Family Tree – RFS". royalfamily.org. Retrieved 24 December 2021.
"Order of line of Succession – RFS". royalfamily.org. Retrieved 24 December 2021.

"Crown Prince Alexander II: the man who would be king of Serbia". Telegraph.co.uk. Archived from the original on 12 January 2022. Retrieved 6 July 2017.

Marjanović, Z. (13 December 2014). "Čuvaju slavu velikog vožda". Vesti-online.

McKinsey, Kitty (27 June 1997). "Kings Try for Comeback". San Francisco Chronicle. Archived from the original on 13 November 2007.
Luxmoore, Jonathan (8 December 2003). "Serbian Orthodox Leader Calls For Monarchy To Be Reintroduced". Ecumenical News International. Archived from the original on 10 October 2006.
"Crown Prince Petar Karađorđević Abdicates In Favour Of Prince Philip". cordmagazine.com. 29 April 2022. Archived from the original on 8 May 2022. Retrieved 1 May 2022.
"Princ Petar saopštio da je abdicirao u korist brata Filipa". danas.rs. 28 April 2022. Archived from the original on 1 May 2022. Retrieved 1 May 2022.