Rik Hafer is on CollEc

rank value
closeness 4669 4.72831
betweenness 1977 4.90212

co-authors

  1. Scott Hein [phe132]
  2. Gerald Dwyer [pdw1]
  3. Ali Kutan [pku30]
  4. Richard Sheehan [psh315]
  5. Stuart Allen [pal470]
  6. Joseph Haslag [pha73]
  7. Garett Jones [pjo80]
  8. Clemens Kool [pko467]
  9. Ariel Belasen [pbe351]
  10. Dennis Jansen [pja184]
  11. Michael Trebing [ptr325]