@Misc{ 
  SoaTor22,
  author = { Soave, Nicola and Tortone, Giorgio },
  title = { On the nodal set of solutions to some sublinear equations without
  homogeneity },
  journal = {  },
  year = { 2022 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6270/ },
  note = { cvgmt preprint}
}