@book { ControllingtechnologieorientierterInnovationen,
    title = "Controlling technologieorientierter Innovationen",
    author = "Albert {Ennser}",
    year = "2002",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832451370",
    url = "https://m.diplom.de/document/220664"
}