1. Yeaple, F.
, 1971, “Metal-to-Metal Traction Drives Now Have a New Lease On Life,” Prod. Eng. (N.Y.), 42, No. 15, pp. 33–37.
2. Nakamura, L., et al. 1979, “A Development of a Traction Roller System for a Gas Turbine Driven APU,” SAE Paper No. 790106.
3. Loewenthal, S. H., Anderson, N. E., and Nasvytis, A. L., 1978, “Performance of Nasvytis Multiroller Traction Drive,” NASA TP-1378.
4. Loewenthal, S. H., Anderson, N. E., and Rohn, D. A., 1981, “Evaluation of a High Performance Fixed-Ratio Traction Drive,” ASME J. Mech. Des., 103, pp. 410–422.
5. Ai, X. and Rybkoski, T. 2000, “Traction Drive Transmission,” U.S. Patent No. 6,095,940.