1.
Lyubarskii GY. Mark Grigor’evich Krein in Kuibyshev (memoirs of a post-graduate student). Ukr. Mat. Zhurn. [Internet]. 1994Mar.25 [cited 2024Nov.24];46(3):310-1. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/5764