David Ryan is on CollEc

rank value
closeness 18900 5.22144
betweenness 10405 0.970325

co-authors

  1. Andre Plourde [ppl27]
  2. Lester Hunt [phu173]
  3. Denise Young [pyo60]
  4. Stuart Landon [pla293]
  5. Alan Woodland [pwo59]
  6. Douglas West [pwe178]
  7. John Livernois [pli306]