@book { DieReformdesSteuerrechts,
    title = "Die Reform des Steuerrechts",
    author = "Stephan {Gerke}",
    year = "1998",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832407360",
    url = "https://m.diplom.de/document/216645"
}