1. ARPA BAA91-10, “Advanced Ceramic Technology Insertion Program Solicitation,” 1999.
2. Contract F33615-92-C-2200; “Ceramic Bearing Technology Insertion,” 1992.
3. Cundill, R. T., Galbato, A. T., Harris, T. A., “Fatigue Life of Silicon Nitride Balls,” STLE 92-AM-8A-2, 1992.