1. 1) Eizaburou Nakanishi: Weight Reduction of Automotive Vehicle Body and Joint Technologies, Quarterly Journal of The Japan Welding Society, 23-1 (2005), 151-156. (in Japanese)
2. 2) Hirose Akio: Aluminum Alloy Car Body -Application and Joining Technologies of Aluminum Alloys in Automobiles- , Quarterly Journal of The Japan Welding Society, 23-1 (2005), 163-168. (in Japanese)
3. 3) Konishi Tokujirou: Welding and Joining of Car Body, Journal of The Japan Welding Society, 74-8 (2005), 512-515. (in Japanese)
4. 4) Kotoyoshi Murakami: Development of Environmentally Friendly Welding Technology, Journal of Society of Automotive Engineers of Japan, 57-6 (2003), 63-68.
5. 5) T.-Y Pan, A. Joaquin D. E. Wilkosz, L. Reatherford, J. M. Nicholson, Z. Feng and M. L. Santella: Spot Friction Welding for sheet aluminum joining, Proc. 5th Int. FSW Symp., Metz, France, 14-16 September, 2004, 11A-2.