?url_ver=Z39.88-2004&rft_id=doi%3A10.1371%2Fjournal.pone.0109507&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Alessandro&rft.au=Chessa%2C+Alessandro&rft.aulast=Chessa&rft.pages=e109507&rft.issn=1932-6203&rft.title=PloS+One&rft.issue=10&rft.volume=9&rft.date=October+2014&rft.atitle=Cluster+analysis+of+weighted+bipartite+networks%3A+a+new+copula-based+approach&rft.genre=article