@book { DasKonzeptBusinessReengineering,
    title = "Das Konzept Business Re-engineering",
    author = "Claus-Sebastian {Ulrich}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832496357",
    url = "https://m.diplom.de/document/224713"
}