СОКІЛ Б. М. Sokil B. M. The Ruska (Ukrainian) language: independent or a Polish dialect. Philological Treatises, [S. l.], v. 6, n. 3, p. 100–104, 2020. Disponível em: https://tractatus.sumdu.edu.ua/index.php/journal/article/view/406. Acesso em: 4 feb. 2023.