SHEVCHENKO O. O. Shevchenko O. O. Positional conditionality of functional aktivity of vowels in German. Philological Treatises, [S. l.], v. 4, n. 4, p. 109–112, 2020. Disponível em: https://tractatus.sumdu.edu.ua/index.php/journal/article/view/550. Acesso em: 21 nov. 2024.