@book { EnergieversorgungundKlimawandel,
    title = "Energieversorgung und Klimawandel",
    author = "Florian {Stein}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640849765",
    url = "https://www.hausarbeiten.de/document/168070"
}