@Article{ 
  SanVal24,
  author = { Santilli, Mario and Valentini, Paolo },
  title = { Alexandrov sphere theorems for $ W^{2,n} $-hypersurfaces },
  journal = { Proc. Roy. Soc. Edinburgh Sect. A },
  year = { 2025 },
  doi = { 10.1017/prm.2025.10047 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/6763/ },
  note = { cvgmt preprint}
}