@Article{ 
  emiman03,
  author = { Eminenti, Manolo and Mantegazza, Carlo },
  title = { Some Properties of the Distance Function and a Conjecture of De Giorgi },
  journal = { J. Geom. Anal. },
  year = { 2004 },
  volume = { 14 },
  number = { 2 },
  pages = { 267-279 },
  URL = { http://cvgmt.sns.it/paper/624/ },
  note = { cvgmt preprint}
}