David Letson is on CollEc

rank value
closeness 18516 5.46067
betweenness 19838 0.162332

co-authors

  1. Daniel Solis [pso136]
  2. Marc Ribaudo [pri284]
  3. B McCullough [pmc128]
  4. Jim Hansen [pha614]
  5. David Kelly [pke98]