1. Nakamura Y (1996) Research and Development of Intelligent Earthquake Disaster Prevention System UrEDAS and HERAS. Journal of Structural Mechanics and Earthquake Engineering, Japan Society of Civil Engineers 531(I-34):1–33
2. Nakamura Y (1988) On the Urgent Earthquake Detection and Alarm System (UrEDAS). 9th World Conference on Earthquake Engineering, Vol. VII, pp 673–678, August 2–9, 1988
3. The Chugoku Shimbun (2001) “Is Shinkansen Safe?” and “No clincher to countermeasure for derailment”, reported on 1st and 2nd May, News Special 2001, May 2001
4. Proceedings of the Study Meeting for damage of recent earthquakes, the Miyagiken-Oki and the Algeria earthquakes (2003) Japan Society of Civil Engineers, 21st August 2003 (in Japanese)
5. Nakamura Y (2004) UrEDAS, Urgent Earthquake Detection and Alarm System, now and future. 13th World Conference on Earthquake Engineering, paper #908, 2004