@Misc{ 
  alecab08,
  author = { Alessandrini, Giovanni and Cabib, Elio },
  title = { EIT and the average conductivity },
  journal = { J. Inv. Ill-Posed Problems },
  year = { 2008 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/102/ },
  note = { cvgmt preprint}
}