Dragnea M. Conquest, holy war, and crusade. The plan of the military campaign against the Slavs. A new interpretation of the so-called Magdeburg Letter of 1108. sa [Internet]. 22 listopad 2024 [cytowane 24 listopad 2024];(65):247-62. Dostępne na: https://pressto.amu.edu.pl/index.php/sla/article/view/45015