PERSONALIA : In memory of Leonid Ivanovich Ponomarev. (30th April 2020) - Bogdanova, L N; Vinitsky, S I; Gershtein, S S; Demin, D L; Kazakov, D I; Korobov, V I; Matveev, V A; Melezhik, V S; Oganessian, Yu Ts; Rubakov, V A; Yukhimchuk, A A; Faifman, M P