?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=T&rft.au=Erkossa%2C+T&rft.aulast=Erkossa&rft.atitle=Enhancing+farming+system+water+productivity+through+alternative+land+use+and+water+management+in+vertisol+areas+of+Ethiopian+Blue+Nile+Basin+(Abay)&rft.title=Agricultural+Water+Management&rft.issn=0378-3774&rft.date=2013&rft.volume=132&rft.pages=120-128&rft.genre=article