Ulrich Zierahn is on CollEc

rank value
closeness 14901 5.19833
betweenness 19622 0.241952

co-authors

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