@Misc{ 
  alb98,
  author = { Alberti, Giovanni },
  title = { Variational Models for Phase Transitions, an Approach via Gamma-Convergence },
  journal = {  },
  year = { 1998 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/815/ },
  note = { cvgmt preprint}
}