@book { ChancenundRisikenderInternationalisierungvonFranchisesystemen,
    title = "Chancen und Risiken der Internationalisierung von Franchisesystemen",
    author = "Jens {Ziegler}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832454418",
    url = "https://m.diplom.de/document/220996"
}