Rik Hafer is on CollEc

rank value
closeness 4789 4.80252
betweenness 1648 5.33751

co-authors

  1. Scott Hein [phe132]
  2. Ali Kutan [pku30]
  3. Richard Sheehan [psh315]
  4. Joseph Haslag [pha73]
  5. Stuart Allen [pal470]
  6. Garett Jones [pjo80]
  7. Clemens Kool [pko467]
  8. Ariel Belasen [pbe351]
  9. Dennis Jansen [pja184]
  10. Michael Trebing [ptr325]