PrefaceLyapin, Alexandr; Murgul, Vera; Beskopylny, A.N.; Porksheyan, V.M.; Komakhidze, M.G.; Sukhinov, A.I.; Chetverushkin, B.N.; Avetisyan, A.I.; Kalyaev, I.A; Ubar, Raimund-JohannesJournal of Physics: Conference Series2021 / art. 011001, 1 p https://doi.org/10.1088/1742-6596/2131/1/011001 Conference proceedings at Scopus Article at Scopus