See also: A.G. Lyapin, S.V. Popova, Yu.A. Klyuev, R.N. Voloshin, V.V. Brazhkin, N.N. Mel’nik, S.G. Lyapin, V.L. Ginzburg, V.V. Ragul’skii, V.I. Simonov, V.N. Lukash, G.A. Askar’yan, A.V. Gurevich, A.K. Zvezdin, A.D. Balaev
PACS: 01.10.Fv, 61.46.+w