@Article{ 
  OgnVel25,
  author = { Ognibene, Roberto and Velichkov, Bozhidar },
  title = { A survey on the optimal partition problem },
  journal = { La Matematica },
  year = { 2026 },
  doi = { 10.1007/s44007-025-00176-8 },
  volume = { 5 },
  number = { 6 },
  pages = {  },
  URL = { http://cvgmt.sns.it/paper/7352/ },
  note = { cvgmt preprint}
}