@book { ImmobilienAktiengesellschaftenundoffeneImmobilienfonds,
    title = "Immobilien-Aktiengesellschaften und offene Immobilienfonds",
    subtitle = "Eine Vorteilhaftigkeitsanalyse",
    author = "Christoph {Schetter}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832468828",
    url = "https://m.diplom.de/document/222225"
}