@Article{ 
  BruPasSem21,
  author = { Bruè, Elia and Pasqualetto, Enrico and Semola, Daniele },
  title = { Constancy of the dimension in codimension one and locality of the unit normal on $\mathrm{RCD}(K,N)$ spaces },
  journal = { Ann. Sc. Norm. Super. Pisa Cl. Sci. },
  year = { 2021 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/5273/ },
  note = { cvgmt preprint}
}