@book { FundamentaleAktienanalyse,
    title = "Fundamentale Aktienanalyse",
    author = "Marcus {Hopf}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832459987",
    url = "https://m.diplom.de/document/221444"
}