?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=S+B&rft.au=Sharma%2C+S+B&rft.aulast=Sharma&rft.atitle=First+report+of+Heterodera+gambiensis+on+pearl+millet+in+Niger&rft.title=Plant+Disease&rft.issn=0191-2917&rft.date=1990&rft.volume=74&rft.pages=938-938&rft.issue=11&rft.genre=article