@book { NeueAnstzeundEntwicklungenimProjektmanagement,
    title = "Neue Ansätze und Entwicklungen im Projektmanagement",
    author = "Dirk {Koch}",
    year = "2007",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836607261",
    url = "https://m.diplom.de/document/225280"
}