@book { SprachkontaktundSprachkonfliktinParaguay,
    title = "Sprachkontakt und Sprachkonflikt in Paraguay",
    author = "Daniela {Fasoli-Wörmann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1093256"
}