See also: A.I. Golovashkin, V.M. Pudalov, V.L. Ginzburg, A.V. Sadakov, K.S. Pervakov, L.I. Ivanova, S.A. Kuzmichev, Yu.F. El’tsev, E.P. Khlybov, N.V. Anshukova
PACS: 74.25.-q, 74.72.-h, 74.20.Mn, 74.90.+n