?url_ver=Z39.88-2004&rft_id=10.1371%2Fjournal.pone.0127833&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=S.&rft.aulast=Saini&rft.au=Saini%2C+S.&rft.atitle=Markerless+human+motion+tracking+using+hierarchical+multi-swarm+cooperative+particle+swarm+optimization&rft.issue=5&rft.volume=10&rft.issn=19326203&rft.date=2015&rft.title=PLoS+ONE&rft.genre=article