@book { TheRoleofBiofuelsasaPossibleMajorFactorintheFoodCrisis200708,
    title = "The Role of Biofuels as a Possible Major Factor in the Food Crisis 2007-08",
    author = "Ronny {Röwert}",
    year = "2011",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783640852239",
    url = "https://www.hausarbeiten.de/document/168272"
}