FÄHNRICH , Heinz. Das kartwelische Dualzeichen: The Kartvelian Dual Sign. Georgica, [S. l.], v. 38, p. 5–7, 2017. Disponível em: https://georgica.journals.humanities.tsu.ge/index.php/georgica/article/view/11376. Acesso em: 11 aug. 2026.