@book { ZumDeutschunterrichtanberufsbildendenSchulen,
    title = "Zum Deutschunterricht an berufsbildenden Schulen",
    author = "Hilmar {Grundmann}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1089763"
}