?url_ver=Z39.88-2004&rft_id=10.1016%2FS0378-4371(99)00145-4&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=Guido&rft.aulast=Caldarelli&rft.au=Caldarelli%2C+Guido&rft.issn=0378-4371&rft.title=Physica+A%3A+Statistical+Mechanics+and+its+Applications&rft.atitle=Criticality+in+models+for+fracture+in+disordered+media&rft.date=August+1999&rft.volume=270&rft.issue=1%E2%80%932&rft.pages=15+-+20&rft.genre=article