@book { ArbeitundMue,
    title = "Arbeit und Muße",
    author = "Reinhild {Zuber-Hinkel}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832430191",
    url = "https://m.diplom.de/document/218737"
}