?url_ver=Z39.88-2004&rft_id=10.1002%2Fjctb.2469&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Ahmad&rft.au=Ahmad%2C+M.M.&rft.aufirst=M.M.&rft.volume=85&rft.issn=02682575&rft.issue=12&rft.atitle=Flowsheet+simulation+of+aqueous+two-phase+extraction+systems+for+protein+purification&rft.pages=1575-1587&rft.title=Journal+of+Chemical+Technology+and+Biotechnology&rft.date=2010&rft.genre=article