?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Patnaik%2C+P+R&rft.aulast=Patnaik&rft.aufirst=P+R&rft.issue=4&rft.volume=25&rft.date=1997&rft.issn=0133-0276&rft.atitle=Principal+component+analysis+of+the+effect+of+in-flow+disturbances+on+recombinant+beta-gaglactosidase+fermentation&rft.title=Hungarian+Journal+of+Industrial+Chemistry&rft.pages=261-264&rft.genre=article