@book { InformationalsProdukt,
    title = "Information als Produkt",
    author = "Deniz {Basci}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832444792",
    url = "https://m.diplom.de/document/220081"
}