@book { DerAnspruchaufFreizeitausgleich,
    title = "Der Anspruch auf Freizeitausgleich",
    author = "Hilmar {Rölz}",
    year = "2017",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b11537",
    url = "https://www.peterlang.com/document/1113336"
}