@book { FundamentalanalyseimAktienbereich,
    title = "Fundamentalanalyse im Aktienbereich",
    author = "Holger {Kahlert}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832461713",
    url = "https://m.diplom.de/document/221627"
}