Yoshihiko Nishiyama is on CollEc

rank value
closeness 3921 4.7033
betweenness 4557 2.38714

co-authors

  1. Peter Robinson [pro222]
  2. Ryo Okui [pok36]
  3. YOKO KONISHI [pko400]
  4. Yasuhiro Sato [psa307]
  5. Vance Martin [pma552]
  6. Taro Kanatani [pka155]
  7. Se-il Mun [pmu157]