donald hay is on CollEc

rank value
closeness 16913 5.27122
betweenness 19507 0.241613

co-authors

  1. Helen Louri [plo273]
  2. Howard Smith [psm46]
  3. Gordon Menzies [pme97]
  4. John Vickers [pvi114]
  5. Jenny Corbett [pco562]