Alf Risa is on CollEc

rank value
closeness 26868 5.52366
betweenness 24424 0.10599

co-authors

  1. Øivind Nilsen [pni23]
  2. Sjur Flåm [pfl18]
  3. Astrid Grasdal [pgr350]
  4. Espen Bratberg [pbr41]