@Misc{ 
  dep01,
  author = { De Pascale, Luigi },
  title = { Morse-Sard theorem in Sobolev Spaces---Optimal transport problems and applications },
  journal = {  },
  year = { 2001 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/590/ },
  note = { cvgmt preprint}
}