@book { DerAnspruchaufVerlngerungderArbeitszeit,
    title = "Der Anspruch auf Verlängerung der Arbeitszeit",
    author = "Frauke {Hansper}",
    year = "2022",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b19756",
    url = "https://www.peterlang.com/document/1241357"
}