@Article{ 
  deppra00,
  author = { De Pascale, Luigi and Pratelli, Aldo },
  title = { Regularity properties for Monge Transport Density and for Solutions of some Shape Optimization Problem },
  journal = { Calc. Var. Partial Differential Equations },
  year = { 2002 },
  volume = { 14 },
  number = { 3 },
  pages = { 249-274 },
  URL = { http://cvgmt.sns.it/paper/788/ },
  note = { cvgmt preprint}
}