Tatsuo Hatta is on CollEc

rank value
closeness 14727 4.87994
betweenness 5638 2.27504

co-authors

  1. Richard Brecher [pbr424]
  2. Hisaki Yamaga [pya170]
  3. Shin Ikeda [pik11]
  4. ERBIAO DAI [pda664]
  5. NOBUO AKAI [pak107]