David Hawdon is on CollEc

rank value
closeness 16975 5.34215
betweenness 20777 0.155943

co-authors

  1. Peter Pearson [ppe517]
  2. Paul Levine [ple338]
  3. Lester Hunt [phu173]
  4. Neil Rickman [pri139]
  5. Roger Fouquet [pfo63]