Strengthening methods in crystals Strengthening methods in crystals edited by A. Kelly and R.B. Nicholson （Elsevier materials science series） Elsevier Pub. Co., 1971 http://mail.126.com/js6/main.jsp?sid=WBUtbuiOQohuPUsFHXOOxhTMcvzicIYU#module=read.ReadModule%7C%7B%22area%22%3A%22normal%22%2C%22isThread%22%3Afalse%2C%22viewType%22%3A%22%22%2C%22id%22%3A%22144%3A1tbikBtnd1agzoHuAAABsN%22%2C%22fid%22%3A1%7D