@book { StrategienzurInternationalisierungdesMarketingimMittelstand,
    title = "Strategien zur Internationalisierung des Marketing im Mittelstand",
    author = "Stefan {Hornauer}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832482404",
    url = "https://m.diplom.de/document/223236"
}