1.
Naidenov G. Ideology, Class and Factional Struggles in the Mid and Late 1920s in Soviet Russia – Nikolai Kondratiev’s Tragic Fate. НТ [Internet]. 2016 Apr. 17 [cited 2026 Jul. 23];(1):7-34. Available from: https://bjiep.e-dnrs.org/index.php/rp/article/view/5632