info:oai:icrisat:2575info:ofi/fmt:xml:xsd:journalNigamS NNigam, S NRaoV RRao, V RGibbonsR WGibbons, R WUtilization of Natural Hybrids in the Improvement of Groundnuts (Arachis hypogaea)Experimental Agriculture1469-4441198319355-3594article