@book { RisikomanagementmitderivativenFinanzinstrumenten,
    title = "Risikomanagement mit derivativen Finanzinstrumenten",
    author = "Markus {Eckhardt}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832413477",
    url = "https://m.diplom.de/document/217030"
}