1. http://www.dieselnet.com/standards/eu/hd.php, March 1, 2007.
2. Cam Design Handbook;Rothbart,2004
3. Cam Design and Manufacturing Handbook;Norton,2002
4. Test equipment for a cam follower system in a diesel engine;Lindholm,2001
5. Advanced Techniques for Assessment of Surface Topography;Blunt,2000