Herman Bierens is on CollEc

rank value
closeness 10968 5.04336
betweenness 4396 2.4174

co-authors

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