Jurczyk, Rafał. “Abandoning the EPP-Feature in Polish Dual Copula Clauses by Redefining the Predication Relation”. LingBaW. Linguistics Beyond and Within 7 (December 30, 2021): 33–57. Accessed May 21, 2024. https://czasopisma.kul.pl/index.php/LingBaW/article/view/13452.