John Hamman is on CollEc

rank value
closeness 20834 5.04057
betweenness 25438 0.176775

co-authors

  1. Roberto Weber [pwe237]
  2. Jose Castillo [pca1226]
  3. John Lightle [pli1025]
  4. Mikhail Drugov [pdr49]
  5. Danila Serra [pse222]