Juho-Antti Junno, Markku Niskanen, Heli Maijanen, Jaakko Niinimäki, Alina Junno, Petteri Oura: The death of King Charles XII of Sweden revisited, PNAS Nexus, Band 1, Nummer 5, November 2022, S. 234, doi:10.1093/pnasnexus/pgac234
google.de
books.google.de
[?] Messmer: Das bayerische Nationalmuseum. München 1868, S. 360.