Achim Ahrens is on CollEc

rank value
closeness 10309 4.98261
betweenness 12872 0.676745

co-authors

  1. Mark Schaffer [psc51]
  2. Sean Lyons [ply16]
  3. Conor O'Toole [pot27]
  4. Kieran McQuinn [pmc112]