@Article{ 
  Nia19,
  author = { Niang, Alassane },
  title = { Boundary regularity for a degenerate elliptic equation with mixed boundary conditions },
  journal = { Communications on Pure and Applied Analysis },
  year = { 2019 },
  doi = { doi:10.3934/cpaa.2019007 },
  volume = { 18 },
  number = { 1 },
  pages = { 22 },
  URL = { http://cvgmt.sns.it/paper/4401/ },
  note = { cvgmt preprint}
}