1. Some Physical Properties of Eight Refractory Oxides and Carbides
2. 2B. L. Grabchuk, and P. S. Kislyi , "Sintering of Boron Carbide with a Low Free Carbon Content ," Poroshk. Metall., 1975 , No. 7, pp.27 -31 .
3. The Quest for Hard Materials
4. 5W. Rutkowski, and W. Szteke , "Some Properties of Boron Carbide Sintered Under Pressure ," Inst. Nacl. Res. Warsaw.Rept. No. 497/14, 1964 ; 30 pp.