?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=A&rft.au=Kergna%2C+A&rft.aulast=Kergna&rft.atitle=The+potential+economic+impact+of+Guinea-race+sorghum+hybrids+in+Mali%3A+A+comparison+of+research+and+development+paradigms&rft.title=African+Journal+of+Agricultural+and+Resource+Economics&rft.date=March+2017&rft.volume=12&rft.pages=17-34&rft.issue=1&rft.genre=article