Gusejnow, G.-R. A.-K. (1991) “Zum nachisch-dagestanischen Subtrat in der Swanischen Sprache”, Georgica, 13(14 (1990), pp. 31–33. Available at: https://georgica.journals.humanities.tsu.ge/index.php/georgica/article/view/10238 (Accessed: 17 May 2026).