2 papers
math.HO2022
Helmut Karzel (1928-2021)
Hans Havlicek, Alexander Kreuzer, Hans-Joachim Kroll +1
Obituary for Professor Dr. Dr. h.c. Helmut Karzel, who passed away on June 22, 2021, at the age of 93.
math.HO2013
Erinnerungen an Heinrich Brauner (1928--1990)
Hans Havlicek
Recollections of the Austrian geometer Heinrich Brauner (in German).