Crusade and Conversion on the Baltic Frontier 1150-1500. Zeitschrift für Ostmitteleuropa-Forschung, [S. l.], v. 51, n. 3, p. 446–447, 2002. DOI: 10.25627/20025137848. Disponível em: https://openjournals.osmikon.de/zfo/article/view/7848. Acesso em: 16 sep. 2026.