@Misc{ 
  LorPen16,
  author = { Lorent, Andrew and Peng, Guanying },
  title = { Regularity of the Eikonal equation with two vanishing entropies },
  journal = { Ann. Inst. Poincare Anal. Non Lineaire. },
  year = { 2016 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/3186/ },
  note = { cvgmt preprint}
}