@Misc{ 
  ciafus04,
  author = { Cianchi, Andrea and Fusco, Nicola },
  title = { Minimal rearrangements, strict convexity and critical points },
  journal = {  },
  year = { 2004 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/690/ },
  note = { cvgmt preprint}
}