References
1. Mishra, R.S. and Ma, Z.Y. "Friction Stir Welding and Processing," Materials Science and Engineering R 50, University of Missouri. 2005.
2. Schneider, Judy. Personal interview: March 27, 2009.
3. Thomas, Norris, Staines, and Wats. Friction Stir Welding Technology, Online article: http://nonferrous.keytometals. com/default.aspx?ID=CheckArticle&NM=190. Accessed March 29, 2009.
