Toffel, S., & Van Heuckelom, K. (2020). Learning and teaching Polish vocabulary using information and 
communication technologies. Stage of realisation of the project 
„Polish Your Polish/(Un)Polish Your Russian” (KU Leuven, Belgia). Postscriptum Polonistyczne, 14(2), 231–247. Retrieved from https://journals.us.edu.pl/index.php/PPol/article/view/10464