Herman Bierens is on CollEc

rank value
closeness 9703 5.056
betweenness 4208 2.40745

co-authors

  1. joop hartog [pha558]
  2. Luis Martins [pma1017]
  3. Robert de jong [pde708]
  4. Jose Carvalho [pca454]
  5. Norman Swanson [psw10]