@book { PersonalmangementimUmbruch,
    title = "Personalmangement im Umbruch",
    author = "Antje {Schneider}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832474676",
    url = "https://m.diplom.de/document/222357"
}