@book { WerteundArbeit,
    title = "Werte und Arbeit",
    author = "Helmut {Wilde}",
    year = "1998",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832411459",
    url = "https://m.diplom.de/document/217069"
}