?url_ver=Z39.88-2004&rft_id=10.1073%2Fpnas.0905764106+&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Hyeon%2C+Changbong&rft.aulast=Hyeon&rft.aufirst=Changbong&rft.issn=1091-6490&rft.volume=106&rft.issue=48&rft.pages=20288-20293&rft.title=Proceedings+of+the+National+Academy+of+Sciences&rft.atitle=Refolding+dynamics+of+stretched+biopolymers+upon+force+quench&rft.date=December+2009&rft.genre=article