1. Cullen, V. (1992/93) Ocean drilling program. Oceanus Winter, 31–33.
2. JAMSTEC (1995) 1994 Annual Report. Japan Marine Science and Technology Center, pp. 18–20.
3. JAMSTEC (1991) State of the Art of Deep-Ocean Floor Sampling Systems. Japan Marine Science and Technology Center, pp. 73–76 (in Japanese).
4. Kenison, R. C. and Hunt, C. V. (1996) Why FPSOs for the Atlantic frontier. Proceedings of Offshore Technology Conference, OTC 8032, pp. 31–40.
5. Kuo, B. C. (1987) Automatic Control Systems, 5th edn., Chapter 3. Prentice-Hall, Englewood Cliffs, NJ.