@book { PersonalrekrutierungimInternet,
    title = "Personalrekrutierung im Internet",
    author = "Beate {Härtl}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832458768",
    url = "https://m.diplom.de/document/221336"
}