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