Kirpičnikov, Anatolij Nikolaevič, and Evgenij Aleksandrovič Râbinin. 1990. “Finno-Ugorskie Plemena I Drevnaâ Rus’ : (v Svete Novyh Issledovanij)”. Fasciculi Archaeologiae Historicae 4 (January). https://journals.iaepan.pl/fah/article/view/1265.