PETRUKHIN, P. Notes on the Novgorod Birchbark Letters (Letters n° 22, 122, 1094, 1121). Studi Slavistici, [S. l.], v. 21, n. 2, p. 5–20, 2025. DOI: 10.36253/Studi_Slavis-16674. Disponível em: https://oaj.fupress.net/index.php/ss/article/view/16674. Acesso em: 23 feb. 2025.