@Article{ 
  FtoZua23,
  author = { Ftouhi, Ilias and Zuazua, Enrique },
  title = { Optimal design of sensors via geometric criteria },
  journal = { Journal of Geometric Analysis },
  year = { 2023 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6123/ },
  note = { cvgmt preprint}
}