?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=G+M&rft.au=Heinrich%2C+G+M&rft.aulast=Heinrich&rft.atitle=Farmers+in+targeted+area+using+a+wider+range+of+crop+management+options+leading+to+increased+productivity+in+Zimbabwe&rft.title=International+Sorghum+and+Millets+Newsletter&rft.date=2001&rft.volume=42&rft.pages=104-106&rft.genre=article