1. N. Sanderson, R. K. Ohm, and M. Jacobs, Oil Gas J. 97, 54 (1999).
2. K. T. Corbett, R. R. Bowen, and C. W. Peterson, Proceeding of 13 th International Offshore and Polar Engineering Conference, p. 105, The International Society of Offshore and Polar Engineers, Hawaii, USA (2003).
3. A. Glover, J. Zhou, D. Horsley, N. Suzuki, S. Endo, and J. Takehara, Proceeding of 22 nd International Conference on Offshore Mechanics and Arctic Engineering, Art. No. OMAE2003-37429, American Society of Mechanical Engineers, Cancun, Mexico (2003).
4. N. Ishikawa, M. Okatsu, S. Endo, and J. Kondo, Proceeding of 6 th International Pipeline Conference, Art. No. IPC2006-10240, American Society of Mechanical Engineers, Calgary, Canada (2006).
5. N. Ishikawa, S. Endo, and J. Kondo, JFE Technical report 7, 20 (2006).