@Article{ 
  BarBriCha13,
  author = { Barles, Guy and Briani, Ariela and Chasseigne, Emmanuel },
  title = { A Bellman approach for regional optimal control problems in R^N },
  journal = { SIAM Journal on Control and Optimization  },
  year = { 2014 },
  doi = { 10.1137/130922288 },
  volume = { 52 },
  number = { 3 },
  pages = { 1712-1744 },
  URL = { http://cvgmt.sns.it/paper/2231/ },
  note = { cvgmt preprint}
}