Długosz K. L2 effects on L1 in foreign language learners: An exploratory study on object pronouns and verb placement in wh-questions in Polish. PJUWM [Internet]. 2021 Dec. 10 [cited 2024 Nov. 23];23(4):153-72. Available from: https://czasopisma.uwm.edu.pl/index.php/pj/article/view/7032