See also: S.S. Shalyt, V.G. Veselago, V.B. Anzin, M.S. Bresler, G.E. Pikus, I.I. Farbshtein, S.V. Demishev, N.E. Sluchanko, A.G. Lyapin
PACS: 71.18.+y, 72.20.My