?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Kumar%2C+Nigam&rft.aulast=Kumar&rft.aufirst=Nigam&rft.issue=11&rft.volume=93&rft.date=November+2010&rft.issn=0006-3525&rft.atitle=Crystallographically+observed+folded+topology+of+an+unsubstituted+%CE%B3-aminobutyric+acid+incorporated+in+a+model+peptide%3A+importance+of+a+C--H%C2%B7%C2%B7%C2%B7O+interaction.&rft.title=Biopolymers&rft.pages=927-31&rft.genre=article