Ilpo Kauppinen is on CollEc

rank value
closeness 16447 5.14898
betweenness 27994 0.0451983

co-authors

  1. Panu Poutvaara [ppo31]
  2. Jarkko Harju [pha871]
  3. George Borjas [pbo44]
  4. Olli Ropponen [pro476]