Takao Ohkawa is on CollEc

rank value
closeness 36431 5.51825
betweenness 10284 1.16464

co-authors

  1. Tetsuya Shinkai [psh228]
  2. Kozo Harimaya [pha776]
  3. Kojun Hamada [pha1429]
  4. Koji Shimomura [psh548]