@book { FacettenderdeutschenSprache,
    title = "Facetten der deutschen Sprache",
    author = "Imke {Lang-Groth} and Martin {Neef}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b14260",
    url = "https://www.peterlang.com/document/1056894"
}