OKOŃ, Wincenty. Głos doktoranta honoris causa. Chowanna, [S. l.], n. 2 (29), p. 270–272, 2007. DOI: 10.31261/CHOWANNA.2007.29.19. Disponível em: https://journals.us.edu.pl/index.php/CHOWANNA/article/view/20481. Acesso em: 4 luty. 2026.