BURGTORF, Jochen. Die Templer auf Ruad (1300–1302). Ordines Militares Colloquia Torunensia Historica. Yearbook for the Study of the Military Orders. Online. 1 July 2011. Vol. 16, pp. 63-91. [Accessed 5 July 2025]. DOI 10.12775/OM.2011.005.