On the Crusades and Coercive Missions in the Baltic Region in the Mid-12th Century and Early 13th Century. The Cases of the Wends and Livonians. Zeitschrift für Ostmitteleuropa-Forschung, Marburg, v. 63, n. 4, p. 499–527, 2014. DOI: 10.25627/20146349753. Disponível em: https://openjournals.osmikon.de/zfo/article/view/9753. Acesso em: 31 oct. 2026.