Jaworski, Sylwester. “The Obstruentised Rhotic of Polish: An Acoustic Study”. Beyond Philology An International Journal of Linguistics, Literary Studies and English Language Teaching, no. 18/1 (March 16, 2021): 47–75. Accessed November 22, 2024. https://czasopisma.bg.ug.edu.pl/index.php/beyond/article/view/6831.