@book { VerbraucherschutzimInternet,
    title = "Verbraucherschutz im Internet",
    author = "Christian {Schneider}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832431532",
    url = "https://m.diplom.de/document/218851"
}