1. Fundamentals of Gear Design;Drago,1988
2. Handbook of Practical Gear Design;Dudley,1994
3. Gear Geometry and Applied Theory;Litvin,1994
4. BS 436: British Standard—spur and helical gears, Part 3. Method for calculation of contact and root bending stress limitations for metallic involute gears, British Standards Institution, 1986.
5. Surface engineering—past, present and future;Bell;Surf. Eng.,1990