Charles Ballard is on CollEc

rank value
closeness 10322 5.21927
betweenness 8256 1.00214

co-authors

  1. John Whalley [pwh8]
  2. Don Fullerton [pfu10]
  3. John Scholz [psc309]
  4. John Goddeeris [pgo654]
  5. Steven Medema [pme628]