Roger Koppl is on CollEc

rank value
closeness 23659 5.516
betweenness 8278 1.20928

co-authors

  1. william butos [pbu82]
  2. Peter Boettke [pbo185]
  3. Alain Marciano [pma1386]
  4. Sorin Tuluca [ptu148]
  5. William Luther [plu313]