@book { InterkulturelleAspektedesEthnoMarketing,
    title = "Interkulturelle Aspekte des Ethno-Marketing",
    author = "Robert {Wünsche}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836619967",
    url = "https://m.diplom.de/document/226182"
}