@book{91651,
	author = {Homann, Sabine and Dalle, Gemedo},
	title = {Potentials and constraints of indigenous knowledge for sustainable range and water development in pastoral land use systems of Africa:},
	publisher = {Deutsche Gesellschaft für Technische Zusammenarbeit (GTZ) GmbH,},
	year = {2004},
	series = {Tropical Ecology Support Programme (TOEB)},
	address = {Eschborn, Germany :}
}