Sturluson, Snorri. Heimskringla, Vol. 3. Edited by Anna Waśko and Jakub Morawiec. Translated by Marta Rey-Radlińska, Grzegorz Bartusik, Remigiusz Gogosz, and Jakub Morawiec. Poland: Księgarnia Akademicka Publishing, 2021. Accessed January 2, 2026. https://books.akademicka.pl/publishing/catalog/book/208.