@book { DieKonzernbilanzierungnachUSGAAP,
    title = "Die Konzernbilanzierung nach US-GAAP",
    author = "René {Leppin}",
    year = "1997",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832405144",
    url = "https://m.diplom.de/document/216448"
}