“‘Reysa in Laudem Dei Et Virginis Marie Contra paganos:’ The Experience of Crusading in Prussia During the Thirteenth and Fourteenth Centuries”. Zeitschrift für Ostmitteleuropa-Forschung, vol. 69, no. 1, Mar. 2020, pp. 1-25, https://doi.org/10.25627/202069110714.