Doleží, Linda, Petra Kurfürstová, and Iveta Šafratová. “Acquisition of Polarity Items in Czech Children: An Experimental Study”. Crossroads. A Journal of English Studies, no. 30 (September 30, 2020): 39–56. Accessed December 18, 2024. https://czasopisma.filologia.uwb.edu.pl/index.php/c/article/view/540.