Maciąg-Fiedler, A. (2026). Michał Głuszkowski: Code-switching and code-mixing in the conditions of Slavic-Slavic language contact. Vershina – a unique Polish language island in Siberia, Wydawnictwo Naukowe Uniwersytetu Mikołaja Kopernika, Toruń 2024, pp. 252. Papers in Linguistics, 28(3), 319–324. https://doi.org/10.31648/pj.12947