1. 2. Evans, A.T. and T.K. Langston, Structural Ceramics, Metallurgiya Publishers, Moscow, 1980, 256-256 (in Russian).
2. 4. Pisarenko, G.S., V.T. Troschchenko and V.G. Timoshenko, Strength ofMetal CeramicMaterial and Alloy under Normal and High Temperature, SSR Academy of Science, Kiev, Ukr., 1962, 275-275 (in Russian).