Tatsuo Hatta is on CollEc

rank value
closeness 11036 4.97083
betweenness 5720 1.95737

co-authors

  1. Richard Brecher [pbr424]
  2. Hisaki Yamaga [pya170]
  3. Shin Ikeda [pik11]
  4. NOBUO AKAI [pak107]