Jóźwiak, Sławomir, and Janusz Trupinda. 2016. “The Position of the ‘master mason’ (‘magister lapidum’, ‘magister laterum’, ‘steinmeister’, ‘czygelmeyster’, ‘muwermeister’) in the Teutonic Order’s State in Prussia in the 14th and in the First Half of the 15th Centuries”. Ordines Militares Colloquia Torunensia Historica. Yearbook for the Study of the Military Orders 20 (May):239-68. https://doi.org/10.12775/OM.2015.010.