@book { VariettendynamikinSprachkontaktsituationen,
    title = "Varietätendynamik in Sprachkontaktsituationen",
    author = "Göz {Kaufmann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1085418"
}