?url_ver=Z39.88-2004&rft_id=doi%3A10.1209%2F0295-5075%2F88%2F48002&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Nicola&rft.au=Perra%2C+Nicola&rft.aulast=Perra&rft.issue=4&rft.issn=0295-5075+&rft.volume=88&rft.atitle=PageRank+equation+and+localization+in+the+WWW&rft.pages=48002&rft.date=2009&rft.title=EPL+(Europhysics+Letters)&rft.genre=article