@book { ZurVereinbarkeitvonInnovationundKostensenkung,
    title = "Zur Vereinbarkeit von Innovation und Kostensenkung",
    author = "Christian {Stahl}",
    year = "2008",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836608718",
    url = "https://m.diplom.de/document/229086"
}