@Article{ 
  MazPelVer21,
  author = { Mazzoleni, Dario and Pellacci, Benedetta and Verzini, Gianmaria },
  title = { Singular analysis of the optimizers of the principal eigenvalue in indefinite weighted Neumann problems },
  journal = { SIAM J. Math. Anal. },
  year = { 2021 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/5320/ },
  note = { cvgmt preprint}
}