@book { TheEconomicsofLandDegradation,
    title = "The Economics of Land Degradation",
    subtitle = "Toward an Integrated Global Assessment",
    author = "Ephraim {Nkonya} and Nicolas {Gerber} and Philipp {Baumgartner} and Joachim {von Braun} and Teresa {Walter}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1108433"
}