?url_ver=Z39.88-2004&rft_id=10.1103%2FPhysRevE.86.011120&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Perotti&rft.au=Perotti%2C+Juan+I.&rft.aufirst=Juan+I.&rft.pages=011120&rft.issn=1539-3755&rft.title=Physical+Review+E&rft.volume=86&rft.date=July+2012&rft.atitle=Smart+random+walkers%3A+the+cost+of+knowing+the+path&rft.genre=article