@book { ImplementierungeinerProfitCenterKonzeption,
    title = "Implementierung einer Profit-Center-Konzeption",
    author = "Alexander {Posmangiu}",
    year = "2009",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836629072",
    url = "https://m.diplom.de/document/226760"
}