1. The development of a Perbury traction transmission for motor car applications;Stubbs;Am. Soc. mech. Engrs paper 80-C2/DET-59,1980
2. Continuously-variable transmission designs for flywheel-hybrid automobiles;Beachley;Proc. Int. Symp. Gearing Power Transmissions, Tokyo,1981
3. The fuel economy potential of heat engine/flywheel hybrid vehicles;Rohde;Soc. Automotive Engrs paper 810264,1981
4. Principles and definitions for continuously-variable transmissions, with emphasis on automotive applications;Beachley;Am. Soc. mech. Engrs paper 80-C2/DET-95,1980
5. Properties of differential transmissions;White;The Engineer,1967