?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=A.D.K.&rft.au=Phiri%2C+A.D.K.&rft.aulast=Phiri&rft.atitle=Maize+and+sesbania+production+in+relay+cropping+at+three+landscape+positions+in+Malawi&rft.title=Agroforestry+Systems&rft.issn=0167-4366&rft.date=1999&rft.volume=47&rft.pages=153-162&rft.issue=3&rft.genre=article