@book { PotentialedesInternetEinsatzesimHandel,
    title = "Potentiale des Internet-Einsatzes im Handel",
    author = "Kai {Malter}",
    year = "1997",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832403706",
    url = "https://m.diplom.de/document/216350"
}