@book { CashFlowundCashFlowStatementsiminternationalenVergleich,
    title = "Cash Flow und Cash Flow Statements im internationalen Vergleich",
    author = "Frank {Meys}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832436148",
    url = "https://m.diplom.de/document/219268"
}