?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=S+C&rft.au=Rao%2C+S+C&rft.aulast=Rao&rft.atitle=Modeling+pigeonpea+phenology&rft.title=International+Journal+of+Biotronics&rft.issn=1348-4478&rft.date=2002&rft.volume=31&rft.pages=85-100&rft.genre=article