?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=B&rft.au=Gerard%2C+B&rft.aulast=Gerard&rft.atitle=Estimation+of+spatial+variability+in+pearl+millet+growth+with+non-destructive+methods&rft.title=Experimental+Agriculture&rft.issn=0014-4797&rft.date=2001&rft.volume=37&rft.pages=373-389&rft.issue=3&rft.genre=article