Witkowska-Gutkowska, Maria. 2013. “The Influence of the Czech Language on the Polish Texts Published in ‘Glos Ludu’ from Zaolzie”. Acta Universitatis Lodziensis. Kształcenie Polonistyczne Cudzoziemców 20 (January): 177-86. https://doi.org/10.18778/0860-6587.20.19.