@book { HauptsacheArbeit,
    title = "Hauptsache Arbeit!?",
    author = "Joachim {Fischer} and Erhard {Nullmeier}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1102785"
}