David Roberts is on CollEc

rank value
closeness 19735 5.27481
betweenness 23180 0.141377

co-authors

  1. B Brorsen [pbr231]
  2. Burton English [pen95]
  3. Siew Hoon Lim [pli699]
  4. Bob Hearne [phe388]
  5. Jayson Lusk [plu63]
  6. Jeremy Jackson [pja307]
  7. Tracy Boyer [pbo918]
  8. Roland Roberts [pro991]