von Güttner-Sporzynski, D. 2021. Communicating God’s war. Accounts of holy war in Polish medieval narrative sources. Ordines Militares Colloquia Torunensia Historica. Yearbook for the Study of the Military Orders. 26, (Nov. 2021), 43–62. DOI:https://doi.org/10.12775/OM.2021.002.