@book { DiePersonengesellschaftimSteuerrecht,
    title = "Die Personengesellschaft im Steuerrecht",
    author = "Patricia {Katla}",
    year = "2005",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832490447",
    url = "https://m.diplom.de/document/224203"
}