Michael Callen is on CollEc

rank value
closeness 7232 4.83086
betweenness 13007 0.698648

co-authors

  1. Muhammad Khan [pkh450]
  2. Eli Berman [pbe188]
  3. James Andreoni [pan31]
  4. Bruno Ferman [pfe315]
  5. Paolo Mauro [pma337]
  6. Noam Yuchtman [pyu185]
  7. Jean Imbs [pim10]