?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=B+I+G&rft.au=Haussmann%2C+B+I+G&rft.aulast=Haussmann&rft.atitle=Improved+methodologies+for+breeding+striga-resistant+sorghums&rft.title=Field+Crops+Research&rft.date=2000&rft.volume=66&rft.pages=195-211&rft.issue=3&rft.genre=article