Sturluson, Snorri. Heimskringla, Vol. 2 . Edited by Anna Waśko and Jakub Morawiec. Translated by Renata Leśniakiewicz-Drzymała, Anna Waśko, Joanna Srholec-Skórzewska, and Jakub Morawiec. Poland: Księgarnia Akademicka Publishing, 2021. Accessed January 1, 2026. https://books.akademicka.pl/publishing/catalog/book/207.