See also: P.V. Shcheglov, V.L. Ginzburg, G.A. Askar’yan, A.V. Gurevich, E.L. Feinberg, Yu.V. Kopaev, G.A. Smolenskii, P.S. Kop’ev, A.K. Murtazaev, V.V. Usov
PACS: 95.75.De, 95.75.Kk, 01.10.Fv