@book { DieSicherheitderEnergieversorgungDeutschlands,
    title = "Die Sicherheit der Energieversorgung Deutschlands",
    author = "Adrian {Urzenitzok} and Henning-Christian {Durnio}",
    year = "2007",
    publisher = "Diplom.de",
    address = "Hamburg, Deutschland",
    doi = "10.3239/9783836603065",
    url = "https://m.diplom.de/document/228848"
}