?url_ver=Z39.88-2004&rft_id=10.1073%2Fpnas.1517441113&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Del+Vicario%2C+Michela&rft.aufirst=Michela&rft.aulast=Del+Vicario&rft.issn=1091-6490&rft.title=Proceedings+of+the+National+Academy+of+Sciences&rft.atitle=The+spreading+of+misinformation+online&rft.date=2016&rft.volume=113&rft.issue=3&rft.pages=554-559&rft.genre=article