@book { NeueKonzeptedesPersonalmanagements,
    title = "Neue Konzepte des Personalmanagements",
    author = "Petra {Fahrenhorst}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832446611",
    url = "https://m.diplom.de/document/220270"
}