See also: N.I. Shakura, P.Yu. Golysheva, D.A. Kolesnikov, D. Klochkov, A. Schwope, E.M. Trunkovsky, I.V. Nikolenko, S.Yu. Shugarov, G. Schonherr, P. Shurygin, R. Staubert, T.R. Irsmambetova, I.F. Bikmaev, I.M. Volkov, E. Irtuganov
PACS: 07.05.Tp, 97.30.-b, 97.80.Jp