Shevchenko O. O. “Shevchenko O. O. Positional Conditions of Realization of Vowel Phonemes in Modern German”. Philological Treatises 5, no. 4 (April 10, 2020): 77–83. Accessed November 21, 2024. https://tractatus.sumdu.edu.ua/index.php/journal/article/view/458.