@book { DieEinstellungdersterreicherzumMarketingimInternet,
    title = "Die Einstellung der Österreicher zum Marketing im Internet",
    author = "Sylvia {Marecek}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832451103",
    url = "https://m.diplom.de/document/220638"
}