?url_ver=Z39.88-2004&rft_id=doi%3A10.1007%2Fs11743-002-0199-8&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Makkar%2C+R+S&rft.aulast=Makkar&rft.aufirst=R+S&rft.issue=1&rft.volume=5&rft.date=2002&rft.issn=1097-3958&rft.atitle=Effects+of+various+nutritional+supplements+on+biosurfactant+production+by+a+strain+of+Bacillus+subtilis+at+45%C2%B0C&rft.title=Journal+of+Surfactants+and+Detergents&rft.pages=11-17&rft.genre=article