@book { FosteringSubsistenceAgricultureFoodSuppliesandHealthinSubSaharanAfrica, title = "Fostering Subsistence Agriculture, Food Supplies and Health in Sub-Saharan Africa", author = "Franz Theo {Gottwald} and Susan {Keino} and Fayeye Timothy {Rotimi}", year = "2007", publisher = "Peter Lang Verlag", address = "Berlin, Germany", url = "https://www.peterlang.com/document/1103843" }