Complex sentence: There, he also worked as a secretary (1929-1933), Secretary-General (1933-1938), Vice President (1939-1945) of the Austrian Academy of Sciences.1933 He was also elected chairman of the German Physical Society elected.
Split into simpler sentences: There, he also worked as a secretary (1929-1933), Secretary-General (1933-1938), Vice President (1939-1945) of the Austrian Academy of Sciences. In 1933 he was also elected chairman of the German Physical Society elected.