@book { Volatilittsderivate,
    title = "Volatilitätsderivate",
    subtitle = "Anwendung und Bewertung von Derivaten mit nichthandelbarem Underlying",
    author = "Catherine {Schwarz}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836623384",
    url = "https://m.diplom.de/document/226206"
}