?url_ver=Z39.88-2004&rft_id=10.1140%2Fepjst%2Fe2012-01650-y&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Caldarelli%2C+Guido&rft.aufirst=Guido&rft.aulast=Caldarelli&rft.date=2012&rft.atitle=Progress+in+the+physics+of+complex+networks&rft.title=The+European+Physical+Journal+-+Special+Topics&rft.issue=1&rft.pages=1-3&rft.volume=212&rft.issn=1951-6355+&rft.genre=article