@book { BilanzierungvonFinanzinstrumenten,
    title = "Bilanzierung von Finanzinstrumenten",
    author = "Tanja {Kopajtic}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832499440",
    url = "https://m.diplom.de/document/225060"
}