?url_ver=Z39.88-2004&rft_id=10.1103%2FPhysRevE.65.046101&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Caldarelli%2C+Guido&rft.aufirst=Guido&rft.aulast=Caldarelli&rft.issn=1539-3755&rft.volume=65&rft.issue=4&rft.title=Physical+Review+E&rft.atitle=Probabilistic+approach+to+the+Bak-Sneppen+model&rft.date=March+2002&rft.genre=article