Alf Risa is on CollEc

rank value
closeness 31308 5.34438
betweenness 28674 0.0964374

co-authors

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