context: In 1935 he was arrested in connection with the Kirov affair.
source: D. Ivanenko was a professor at Tomsk University from 1936 to 1938.
reference_original: كان D. Ivanenko أستاذ في جامعة Tomsk من 1936 حتى 1938.
reference_flipped: كانت D. Ivanenko أستاذة في جامعة Tomsk من 1936 حتى 1938.