@book { DerQuickResponseCodealsInstrumentdesWeinmarketings,
    title = "Der Quick-Response Code als Instrument des Weinmarketings",
    author = "Daniela {Knop}",
    year = "2012",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783842828834",
    url = "https://m.diplom.de/document/229156"
}