Robert Helsley is on CollEc

rank value
closeness 8568 4.94075
betweenness 9849 0.990816

co-authors

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