?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Kumar+Thakur%2C+A&rft.aulast=Kumar+Thakur&rft.aufirst=A&rft.issue=2&rft.volume=273&rft.date=5+July+2000&rft.issn=0006-291X&rft.atitle=Collateral+existence+of+folded+and+extended+conformations+of+the+beta-Ala+moiety+in+a+model+peptide.&rft.title=Biochemical+and+biophysical+research+communications&rft.pages=492-8&rft.genre=article