See also: W.V. Pogosov, A.A. Zhukov, A.M. Satanin, V.A. Vozhakov, M.V. Bastrakova, N.V. Klenov, I.I. Soloviev
PACS: 03.67.Lx, 03.75.Lm, 42.50.Dv, 85.25.Cp