@book { DerFreiheitsbegriffbeiJeanJacquesRousseau,
    title = "Der Freiheitsbegriff bei Jean-Jacques Rousseau",
    author = "Maren {Vossenkuhl}",
    year = "2007",
    publisher = "GRIN Verlag",
    address = "München, Germany",
    doi = "10.3239/9783638634755",
    url = "https://www.hausarbeiten.de/document/72730"
}