context: He completed his doctorate from the University of Helsinki in 1930.
source: Ahlfors worked as an associate professor at the University of Helsinki from 1933 to 1936.
reference_original: С 1933 по 1936 год Алфорс работал доцентом в Университете Хельсинки.
reference_flipped: С 1933 по 1936 год Алфорс работала доцентом в Университете Хельсинки.