context: Then D. D. Ivanenko studied at Kharkiv University, from which in 1923 he was transferred to Petrograd University.
source: After graduating the university, from 1927 to 1930 D. Ivanenko was a scholarship student and then a research scientist at the Physical Mathematical Institute of Academy of Sciences of USSR.
reference_original: Dopo essersi laureato, dal 1927 al 1930 D. Ivanenko fu uno studente borsista e successivamente un ricercatore scientifico presso il Physical Mathematical Institute of Academy of Sciences dell'USSR.
reference_flipped: Dopo essersi laureata, dal 1927 al 1930 D. Ivanenko fu una studentessa borsista e successivamente una ricercatrice scientifica presso il Physical Mathematical Institute of Academy of Sciences dell'USSR.