Chang Ma is on CollEc

rank value
closeness 11600 4.79049
betweenness 25287 0.180998

co-authors

  1. John Rogers [pro248]
  2. Sili Zhou [pzh870]
  3. Daniel te Kaat [pte336]
  4. Fabian Valencia [pva377]
  5. Peter Bednarek [pbe939]
  6. Shang-Jin Wei [pwe20]