PHASE COMPOSITION, MICROSTRUCTURE, AND THERMAL EXPANSION OF B2O3-MODIFIED LAGAO3-BASED CERAMICS СтатьяAleksandrovskii V.V., Kaleva G.M., Politova E.D., Prutchenko S.G., Rudnitskii L.A., Stefanovich S.Yu., Venskovskii N.U., Khortova A.Yu.Inorganic Materials. Том 37. 2001. С. 641-646