@book { Accelerationofproductdevelopmentprocessinsmallandmiddlesizecompanies,
    title = "Acceleration of product development process in small and middle size companies",
    author = "Jens-Peter {Mollenhauer}",
    year = "1999",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832419592",
    url = "https://m.diplom.de/document/217803"
}