@book { ChineseDualClassSharesListedinHongKongandMainlandChina,
    title = "Chinese Dual-Class Shares Listed in Hong Kong and Mainland China",
    author = "Patrick {Müller}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836609968",
    url = "https://m.diplom.de/document/225604"
}