Quanshun Luo, Yubi Gao, and Yutian Ding. “Residual Normal and Shear Stresses on Different Machining-Finished Surfaces of Martensitic Ultrahigh Strength Steel”. Journal of Material Science and Technology Research 6 (October 31, 2019):  123–129. Accessed May 17, 2024. https://www.zealpress.com/jms/index.php/jmstr/article/view/80.