Ščavinskas, Marius. “The Pattem of the Conquest of the Polabian Slavs and Western Baltic Lands from the Point of View of Christianization of the Baltic Tribes”. Lietuvos istorijos studijos 25 (June 28, 2010): 9–24. Accessed September 27, 2024. https://www.journals.vu.lt/lietuvos-istorijos-studijos/article/view/36764.