Bibliography
- Nakao . 1987 . From the 118th and 119th Nishiyama Memorial Technical Lectures , Japan Steel Society .
- Katahira , Kobayashi and Tsuji . 1988 . Welding research committee, WM-1208–88 ,
- Kobayashi , Katahira , Seki , Tagane and Nagamine . 1988 . Japan Steel Pipe Technical Report, No. 120 , : 15 – 23 .
- Kitada , Kobayashi , Hira , Ume and Ito . 1987 . Japan Steel Pipe Technical Report, No. 119 , : 17 – 24 .