@book { TransformationderBaubranchedurchEinsatzdigitalerTechnologien,
    title = "Transformation der Baubranche durch Einsatz digitaler Technologien",
    author = "Holger {Graetz}",
    year = "2006",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832495817",
    url = "https://m.diplom.de/document/224489"
}