?url_ver=Z39.88-2004&rft_id=10.1103%2FPhysRevE.84.046117&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Squartini&rft.au=Squartini%2C+Tiziano&rft.aufirst=Tiziano&rft.title=Physical+Review+E&rft.date=October+2011&rft.atitle=Randomizing+world+trade.+I.+A+binary+network+analysis&rft.pages=046117&rft.issn=1539-3755&rft.volume=84&rft.genre=article