?url_ver=Z39.88-2004&rft_id=10.1007%2Fs00500-004-0437-9&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Vasant&rft.au=Vasant%2C+P.&rft.aufirst=P.&rft.issue=2&rft.volume=10&rft.issn=14327643&rft.pages=144-151&rft.atitle=Fuzzy+optimization+of+units+products+in+mix-product+selection+problem+using+fuzzy+linear+programming+approach&rft.title=Soft+Computing&rft.date=2006&rft.genre=article