?url_ver=Z39.88-2004&rft_id=10.1073%2Fpnas.1521573113&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Stefano&rft.aulast=Battiston&rft.au=Battiston%2C+Stefano&rft.issn=1091-6490&rft.title=Proceedings+of+the+National+Academy+of+Sciences&rft.atitle=The+price+of+complexity+in+financial+networks&rft.date=2016&rft.volume=113&rft.issue=36&rft.pages=10031-10036&rft.genre=article