@Misc{ 
  KhaSob12,
  author = { Khanin, Konstantin and Sobolevski, Andrei },
  title = { On dynamics of Lagrangian trajectories for Hamilton-Jacobi equations },
  journal = {  },
  year = { 2012 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/2048/ },
  note = { cvgmt preprint}
}