See also: A.K. Zvezdin, A.V. Khval’kovskii, Yu.V. Gulyaev, P.E. Zil’berman, E.M. Epshtein, M.D. Davydova, A.P. Pyatakov, A.S. Sergeev, E.P. Nikolaeva, T.B. Kosykh, A.V. Nikolaev
PACS: 85.75.-d, 72.25.-b, 75.75.+a, 75.75.-c, 75.76.+j, 75.78.Cd, 75.78.Jp, 78.20.Ls, 75.85.+t, 85.70.-w