@book { PersonalbeschaffungimInternet,
    title = "Personalbeschaffung im Internet",
    author = "Verena {Schwarzmann}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832458300",
    url = "https://m.diplom.de/document/221296"
}