@book { DasGesetzberTeilzeitarbeit,
    title = "Das Gesetz über Teilzeitarbeit",
    author = "Philipp Christopher {Brügge}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1098107"
}