TSCHUMBURIDSE, Surab. Die swanische Sprache. Georgica, [S. l.], v. 13, n. 14 (1990), p. 17–22, 1991. Disponível em: https://georgica.journals.humanities.tsu.ge/index.php/georgica/article/view/10234. Acesso em: 11 aug. 2026.