Ulrich Zierahn is on CollEc

rank value
closeness 14785 5.19833
betweenness 19549 0.23985

co-authors

  1. Terry Gregory [pgr370]
  2. Jan Hogrefe [pho420]
  3. Bethlehem Argaw [par288]
  4. Daniel Arnold [par423]
  5. Sven Schulze [psc475]
  6. Ulf Rinne [pri117]