@Article{ 
  ambcriman04,
  author = { Ambrosio, Luigi and Crippa, Gianluca and Maniglia, Stefania },
  title = { Traces and fine properties of a $BD$ class of vector fields and applications },
  journal = { Ann. Fac. Sci. Toulouse Math. (6) },
  year = { 2005 },
  volume = { 14 },
  number = { 4 },
  pages = { 527-561 },
  URL = { http://cvgmt.sns.it/paper/266/ },
  note = { cvgmt preprint}
}