@Misc{ 
  DoPeZhZh22,
  author = { Dong, Hongjie and Peng, Fa and Zhang, Yi Ru-Ya and Zhou, Yuan },
  title = { Jacobian determinants for (nonlinear) gradient of planar
  $\infty$-harmonic functions and applications },
  journal = {  },
  year = { 2022 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6613/ },
  note = { cvgmt preprint}
}