?url_ver=Z39.88-2004&rft_id=10.1021%2Fja0265916&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Florio%2C+GM&rft.aulast=Florio&rft.aufirst=GM&rft.issue=34&rft.volume=124&rft.date=28+August+2002&rft.issn=0002-7863&rft.atitle=Conformational+preferences+of+jet-cooled+melatonin%3A+Probing+trans-+and+cis-amide+regions+of+the+potential+energy+surface&rft.title=Journal+of+the+American+Chemical+Society&rft.pages=10236+-+10247&rft.genre=article