GAHLBECK, Christian. Die Rolle der Stadtkirchen innerhalb der mittelalterlichen Ballei Brandenburg des Johanniterordens. Ordines Militares Colloquia Torunensia Historica. Yearbook for the Study of the Military Orders. Online. 29 December 2020. Vol. 25, pp. 325-362. [Accessed 5 July 2025]. DOI 10.12775/OM.2020.013.