@book { RechtsberatungimWandel,
    title = "Rechtsberatung im Wandel",
    author = "Stefan {Graumann}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832483661",
    url = "https://m.diplom.de/document/223558"
}