@book { TransnationaleKooperationalsMarketingstrategieimKulturtourismus,
    title = "Transnationale Kooperation als Marketingstrategie im Kulturtourismus",
    author = "Thomas {Versec}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832460242",
    url = "https://m.diplom.de/document/221453"
}