@book { Enginesandfuelsofthefutureintheautomotiveindustry,
    title = "Engines and fuels of the future in the automotive industry",
    author = "Thomas {Wagner}",
    year = "2008",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638070102",
    url = "https://www.hausarbeiten.de/document/90093"
}