Robert Helsley is on CollEc

rank value
closeness 8441 4.94589
betweenness 11072 0.851585

co-authors

  1. William Strange [pst178]
  2. Yves Zenou [pze5]
  3. Jan Brueckner [pbr241]
  4. Maurice Levi [ple633]
  5. Dennis Capozza [pca514]