Rajchelt, B. The Advancing Multiculturalism in the German Language Area and the Influence of Globalization and Migration on the Common or Colloquial German. In Migracja w języku, literaturze i kulturze; Migodzińska, M., Stawikowska-Marcinkowska, A., Eds.; Lodz University Press: Poland, 2020; pp. 51-57. https://doi.org/10.18778/8220-339-4.06.