?url_ver=Z39.88-2004&rft_id=10.1103%2FPhysRevLett.80.4217&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Chessa%2C+Alessandro&rft.aufirst=Alessandro&rft.aulast=Chessa&rft.issn=0031-9007&rft.date=May+1998&rft.atitle=Energy+constrained+sandpile+models&rft.title=Physical+Review+Letters&rft.pages=4217-4220&rft.volume=80&rft.genre=article