[5]   Wang, Y.S., Schaefer, S.K., Bennett, C. and Barber, G.C. (1995) Wear Mechanisms of Valve Seat and Insert in Heavy Duty Diesel Engine. SAE Paper No. 952476, Warrendale PA, 11 p.

[6]   Wang, Y.S., Narasimhan, S., Larsen, J.M., Larson, J.E. and Barber, G.C. (1996) The Effect of Operating Conditions on Heavy Duty Engine Valve Seat Wear. Wear, 201, 15-25.

[7]   Schaefer, S.K., Larsen, J.M., Jenkins, L.F. and Wang, Y. (1997) Evolution of Heavy Duty Engine Valves—Materials and Design. ASM International, Materials Park, Ohio, 129-139.

[8]   Lewis, R. and Dwyer-Joyce, R.S. (2001) Design Tools for Prediction of Valve Recession and Solving Valve/Seat Failure Problems. SAE Paper 2001-01-1987, Soc. of Automotive Engineers, Warrendale, PA, 10 p. (also printed in SAE Spec. Publication SP-1624)

[9]   Blau, P.J. (2009) A Wear Model for Diesel Engine Exhaust Valves, Report, Materials Science and Technology Division, Oak Ridge National Laboratory, ORNL/TM-2009/259.

[10]   Frank-Paul, M. (1978) Introduction to System Sensitivity Theory. Academic Press, New York.

[11]   Slatter, T., Lewis, R. and Dwyer-Joyce, R.S. (2006) Valve Recession Modelling. SAE Technical Paper 2006-01-0365, 9 p.