Holopainen, Sampsa, and Niklas Metsäranta. “A Bridge Too Far – A Uralic Perspective on Volga Bulgarian”. Finnisch-Ugrische Forschungen 2020, no. 65 (December 1, 2020): 172–186. Accessed November 21, 2024. https://journal.fi/fuf/article/view/89967.