@book { MarkenbildunginderVerlagsbranche,
    title = "Markenbildung in der Verlagsbranche",
    author = "Brigitte {Harbarth}",
    year = "1998",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832410216",
    url = "https://m.diplom.de/document/216915"
}