@book { TheNewMarketIndonesia,
    title = "The New Market Indonesia",
    author = "Stephan {Windfelder}",
    year = "1998",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832406615",
    url = "https://m.diplom.de/document/216591"
}