@book { SprachkontaktSprachmischungSprachwahlSprachwechsel,
    title = "Sprachkontakt – Sprachmischung – Sprachwahl – Sprachwechsel",
    author = "Gerd {Hentschel} and Bernhard {Kittel} and Diana {Lindner} and Mark {Brüggemann} and Jan Patrick {Zeller}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1110323"
}