@book { TheValuationofMultivariateOptions,
    title = "The Valuation of Multivariate Options",
    author = "Christian {Hassold}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832481322",
    url = "https://m.diplom.de/document/223357"
}