1. Akehurst, S., Parker, D. A. and Schaff, S. (2006). CVT rolling traction drives — A review of research into their design, functionality, and modeling. ASME J. Mechanical Design 128, 5, 1165–1176.
2. Belfiore, N. P. and De Stefani, G. (2003). Ball toroidal CVT: a feasibility study based on topology, kinematics, statics and lubrication. Int. J. Vehicle Design 23, 3–4, 304–331.
3. Birch, S. (2000). Audi takes CVT from 15th century to 21st century. Automotive Engineering Int.
4. Boos, M. and Mozer, H. (1997). ECOTRONIC — the continuously variable ZF transmission (CVT). Transmission and Driveline Systems Symp. SAE Paper No. 970685. 61–67.
5. Brace, C., Deacon, M., Vaughan, N. D., Horrocks, R. W. and Burrows, C. R. (1999). The compromise in reducing exhaust emissions and fuel consumption from a diesel CVT powertrain over typical usage cycles. Proc. CVT’99 Cong., Eindhoven, 27–33.