?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=V&rft.au=Kamala%2C+V&rft.aulast=Kamala&rft.atitle=Sources+of+resistance+to+downy+mildew+in+wild+and+weedy+sorghums&rft.title=Crop+Science&rft.date=2002&rft.volume=42&rft.pages=1357-1360&rft.issue=4&rft.genre=article