Deletion of Ulrich Kortz

Comment: per #C1 and per the coverage of his scientific contributions in more popular sources such as ScienceDaily
Stance: keep
Cited policy: Wikipedia:Notability (WP:PROF)

Comment: 13 papers with over 100 cites (albeit in a well-cited field) passes rof#1
Stance: keep
Cited policy: Wikipedia:Portal (WP:P)