KAVERINA, Valeria. Formation of the Norms for the Distribution of the Letters и and ы after c in Russian Writing. Rozprawy Komisji Językowej, [S. l.], v. 69, p. 67–78, 2021. DOI: 10.26485/RKJ/2021/69/4. Disponível em: https://journals.ltn.lodz.pl/Rozprawy-Komisji-Jezykowej/article/view/1561. Acesso em: 8 dec. 2025.