Лазарович, О. М. “DEVELOPMENT OF POLISH ORTHOGRAPHY”.
PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY Word
, no. 3(39) (February 19, 2020): 56–63. Accessed March 16, 2025. https://pvntsh.nung.edu.ua/index.php/word/article/view/1235.