@book { TheIPOBusinessofGermanDiscountBrokers,
    title = "The IPO Business of German Discount Brokers",
    author = "Sido {Schrom}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832442804",
    url = "https://m.diplom.de/document/219893"
}