See also: M.G. Bulatov, Yu.G. Trokhimovskii, O.Yu. Lavrova, K.T. Litovchenko, M.I. Mityagina, M.D. Raev, Yu.A. Kravtsov, I.V. Shugan, K.D. Sabinin
PACS: 84.40.Ba, 92.10.Hm, 93.85.+q