info:oai:icrisat:3125info:ofi/fmt:xml:xsd:journalAllenS JAllen, S JWallaceJ SWallace, J SGashJ H CGash, J H CSivakumarM V KSivakumar, M V K1097-0088625-636Measurements of albedo variation over natural vegetation in the sahel146International Journal of Climatology1994article