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