@book { DasErstelleneinesInformatikControllingkonzeptes,
    title = "Das Erstellen eines Informatik-Controllingkonzeptes",
    author = "Winfried {Rauser}",
    year = "2001",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832436162",
    url = "https://m.diplom.de/document/219270"
}