@book { GoingPubliceinerFuballKapitalgesellschaft,
    title = "Going Public einer Fußball-Kapitalgesellschaft",
    author = "Jan Claas {Bringezu}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832443306",
    url = "https://m.diplom.de/document/219930"
}