@book { LebendigeGrten,
    title = "Lebendige Gärten",
    subtitle = "Urbane Landwirtschaft in Kuba zwischen Eigenmacht und angeleiteter Selbstversorgung",
    author = "Daniela {Kälber}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1107805"
}