?url_ver=Z39.88-2004&rft_id=doi%3A10.1023%2FA%3A1005502824637&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Singh%2C+Jasvir&rft.aulast=Singh&rft.aufirst=Jasvir&rft.issue=10&rft.volume=21&rft.date=1999&rft.issn=01415492&rft.atitle=Alkaline+protease+from+a+new+obligate+alkalophilic+isolate+of+Bacillus+sphaericus&rft.title=Biotechnology+Letters&rft.pages=921-924&rft.genre=article