See also: A.M. Bazuev, N.N. Sobolev, N.G. Basov, O.A. Shustin, S.A. Fridrikhov, I.A. Yakovlev, V.A. Danilychev, E.M. Belenov, V.V. Sokovikov, A.F. Suchkov, B.Sh. Perkal’skis, V.E. Privalov
PACS: 42.55.Lt, 42.60.Fc, 42.60.Jf, 42.79.Bh