@book { AutoXpress,
    title = "AutoXpress",
    author = "Gregor M.R. {Johannsen}",
    year = "2003",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783832472535",
    url = "https://m.diplom.de/document/222556"
}