@book { SpracheundGesellschaft,
    title = "Sprache und Gesellschaft",
    author = "Alicja {Nagórko} and Sonja {Heyl} and Elena {Graf}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1104904"
}