Березович, Елена Л., Макарова Анна A., and Ирма И. Муллонен. “‘Demonological’ Root čert- and Hiisi- in Russian Toponymy of the Russian North and the Republic of Karelia”. Linguistica 55, no. 1 (December 31, 2015): 187–205. Accessed September 28, 2021. https://revije.ff.uni-lj.si/linguistica/article/view/6310.