@book { DeutschChinesischerAuenhandel,
    title = "Deutsch-Chinesischer Außenhandel",
    subtitle = "Strukturen und Hemmnisse",
    author = "Li {Lü}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832439224",
    url = "https://m.diplom.de/document/219562"
}