1. Chave, A., R. Butler, R. A. Petitt, Jr., D. R. Yoerger, F. B. Wooding, A. D. Bowen, L. E. Freitag, J. Catipovic, F. K. Duennebier, D. Harris, A. H. Dodeman, and S. T. Brewer, H2O: The Hawaii-2 Observatory, in Proceedings of International Workshop on Scientific Use of Submarine Cables, pp. 114–115, Okinawa, Japan, 1997.
2. Craig, Y., K. Horiba, A. Farley, J. A. Welhan, K.-R. Kim, and R. N. Hey, Hydrothermal vents in the Mariana Trough: results of the first ALVINE dives, EOS Trans. AGU, 68, 1531, 1987.
3. Eguchi, T., Y. Fujinawa, E. Fujita, S. Iwasaki, I. Watanabe, and H. Fujiwara, An observation network of ocean-bottom seismometers deployed at the Sagami Trough subduction zone, in Proceedings of International Workshop on Scientific Use of Submarine Cables, pp. 143–146, Okinawa, 1997.
4. Fujisawa, K., S. Tateyama, and J. Funasaki, Permanent ocean-bottom earthquake and tsunami observation system off the Boso Peninsula, Weather Service Bull., 53, 127–166, 1986 (in Japanese).
5. Furukawa, H., A. Nishizawa, and A. Asada, Monitoring system for sub-marine volcanic activities, in Proceedings of International Workshop on Scientific Use of Submarine Cables, pp. 153–156, Okinawa, 1997.