Saverio Fratini is on CollEc

rank value
closeness 29077 5.27277
betweenness 9004 1.38497

co-authors

  1. enrico levrero [ple499]
  2. Fabio Ravagnani [pra1135]
  3. Heinz Kurz [pku138]
  4. Arrigo Opocher [pop16]