Ryuichiro Ishikawa is on CollEc

rank value
closeness 14343 4.8734
betweenness 17721 0.495526

co-authors

  1. Nobuyuki Hanaki [pha135]
  2. Tomoki Fujii [pfu41]
  3. Eizo AKIYAMA [pak195]
  4. Yukihiko Funaki [pfu167]
  5. Adrian Penalver [ppe794]
  6. mamoru kaneko [pka121]
  7. Noritaka Kudoh [pku73]