1. [1] Takeshita, K., "Track Irregularity Inspection Method by Revenue-earning Train," RTRI Report, Vol.9, No.2, pp.29-34, 1995 (in Japanese).
2. Development of Measurement Device of Track Irregularity using Inertial Mid-chord Offset Method
3. [3] Tsubokawa, Y. Yazawa, E. and Moritaka, H., "Track Irregularity Measurement Using Inertial Mid-chord Offset Method Installed On Commercial Railway Vehicle," presented at the 15th J-Rail, 2008(in Japanese).
4. [4] Moritaka, H. Matsumoto, T. Yazawa, E. Tsubokawa, Y., "Development of Measurement Device of Track Irregularity using Inertial Mid-chord Offset Method for Kyushu Shinkansen," presented at the WCRR, Seoul, Korea, May 18-22, 2008.