M. Grabowska and W. Ucherek, “Enrichment of the lexicon of students of French philology. Analysis of the contributions of informal learning under Covid-19 lockdown”, in The Art of Living, Surviving, Reviving. Studies in Linguistics. The 50th Anniversary of Romance Studies at the University of Łódź, M. Lipińska and M. Szeflińska-Baran, Eds. Poland: Lodz University Press, 2022, pp. 119–129. doi: 10.18778/8220-879-5.10.