АФАНАСЬЕВНА МОРОЗОВА, Надежда; ЧЕКМОНАС, Валерий. Pious Followers of the Old Faith Near Opočka (Some Socio- and Ethnolinguistic Notes). Slavistica Vilnensis, [S. l.], v. 51, n. 2, p. 93–116, 2002. Disponível em: https://www.journals.vu.lt/slavistica-vilnensis/article/view/26845. Acesso em: 17 apr. 2025.