ARNOLD, Udo. Tannenberg (Grunwald) in der deutschen Tradition des 19. und. Ordines Militares Colloquia Torunensia Historica. Yearbook for the Study of the Military Orders. Online. 13 July 2015. Vol. 19, pp. 241-254. [Accessed 3 July 2025]. DOI 10.12775/OM.2014.013.