@book { AssetAllocationPerformanceMeasurementandDownsideRisk,
    title = "Asset Allocation, Performance Measurement and Downside Risk",
    author = "Alexandra Elisabeth {Janovsky}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832432218",
    url = "https://m.diplom.de/document/218912"
}