1. [1] https://www.rtri.or.jp/assets/edga9q00000003x7-att/RESEARCH2025RTRI_E.pdf (Reference date: May 31, 2021).
2. [2] https://wcrr2019.org/ (Reference date: May 31, 2021).
3. [3] Uzuka, T., "Summary of WCRR 2019," Ascent, No.7, April, pp.5-10, 2020.
4. [4] Ohsaki, H., "Linear Motor Powered Urban Transportation in Japan," presented at WCRR 2019, OS 08 1, 2019.
5. [5] Kitano, J., "Progress of the Superconducting Maglev Chuo Shinkansen," presented at WCRR 2019, OS 08 2, 2019.