FELDSTEIN, Ronald F. Regular Properties of Old Church Slavonic Verbs. Slovene Studies Journal, [S. l.], v. 9, n. 1, p. 79–86, 1987. DOI: 10.7152/ssj.v9i1.3685. Disponível em: https://journals.lib.washington.edu/index.php/ssj/article/view/3685. Acesso em: 2 may. 2026.