@Misc{ 
  HanLiu26,
  author = { Han, Bangxian and Liu, Dengyu },
  title = { Wasserstein Barycenter Convexity Detects Hilbertian Geometry },
  journal = {  },
  year = { 2026 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/7841/ },
  note = { cvgmt preprint}
}