1. The Study of Mechanisms and the Construction of Models of Residual Stress Formation in Machining Steel;Liu;NSF MEA8021049,1984
2. Residual Stress in the Machine Surface of Hardened Steel;Matsumoto;High Speed Machining,1984
3. Discussions at McGill Manufacturing Co. and Timken Co.;Liu,1989
4. Private communication with a major bearing producer (Sept. 1990).