@book { DasfehlerhafteArbeitsverhltnis,
    title = "Das fehlerhafte Arbeitsverhältnis",
    author = "Corinna {Verhoek}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1100823"
}