@Misc{ 
  ChoCriSpi16,
  author = { Choudhury, Anupam Pal and Crippa, Gianluca and Spinolo, Laura Valentina },
  title = { Initial-boundary value problems for nearly incompressible vector fields, and applications to the Keyfitz and Kranzer system },
  journal = {  },
  year = { 2016 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3192/ },
  note = { cvgmt preprint}
}