1. X. Ai, C. A. Moyer, Rolling Element Bearings, in Modern Tribology Handbook, (CRC, 2001), pp. 1041–1093
2. H. S. Cheng, Gears, in Modern Tribology Handbook, (CRC, 2001), pp. 1095–1129
3. R.F. Salant, Rotary Dynamic Seals, in Modern Tribology Handbook, (CRC, 2001), pp. 1131–1157
4. J.A. Hawk, R.D. Wilson, J.H. Tylczak, O.N. Dogan, Laboratory Abrasive Wear Tests: investigation of Test Methods and Alloy Correlation. Wear 225, 1031–1042 (1999)
5. J. H. Tylczak, A. Oregon, Abrasive Wear, in ASM Handbook Volume 18, (ASM International, 1992), p. 184