SPECTROSCOPY OF ENERGY-GAP IN CERAMICS AND ORIENTED FILMS OF YBA2CU3O7 IN THE REGIME OF NEGATIVE LIGHT-FLUXES (SOLID STATE COMMUNICATIONS, 1989)

(untitled) - Boldyrev, N; Burlakov, V; Golovashkin, A; Khadzhiiskii, Y; Kraiskaya, K; Krasnosvobodtsev, S; Lerner, I; Mitko, A; Pechen, E; Zhizhin, G