Kuybyshev, Valerian Vladimirovich (13 January 1934). On Scientific Degrees and Challenges. Moscow, Russia: The Council of the People's Commissars of the USSR. Archived from the original on 2018-04-18. Retrieved 2018-04-27.
Volkov, M. N. "Доктор наук". Great Soviet Encyclopedia (in Russian) (3rd ed.). Moscow: Sovetskaya Enciklopediya. Vol. 11. Archived from the original on 2020-06-21. Retrieved 2020-06-19.
Kuybyshev, Valerian Vladimirovich (13 January 1934). On Scientific Degrees and Challenges. Moscow, Russia: The Council of the People's Commissars of the USSR. Archived from the original on 2018-04-18. Retrieved 2018-04-27.
Volkov, M. N. "Доктор наук". Great Soviet Encyclopedia (in Russian) (3rd ed.). Moscow: Sovetskaya Enciklopediya. Vol. 11. Archived from the original on 2020-06-21. Retrieved 2020-06-19.