@book { KennzahlenundWerttreibersystemefrdasWertmanagement,
    title = "Kennzahlen- und Werttreibersysteme für das Wertmanagement",
    author = "Markus {Kastner}",
    year = "2004",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832481490",
    url = "https://m.diplom.de/document/223373"
}