1. Ota, Masato, High degree performances and applications of magnetic bearing,Journal of the Japanese Society of Precision Engineering,57, 4 (1991), 594–598. (in Japanese)
2. Satoh, Ichiju, Jinzo Nagahio, Chikaka Murakami and Atsushi Nakajima, Suppressing of whirling motion of a high-speed rotor suspended by outer-rotor-type megnetic bearing,JSME International Journal, Series 3,33, 1 (1990), 42–48.
3. Ulbrich, H. and E. Anton, Theroy and application of magnetic, bearing with integrated displacement and velocity sensors, IMechE C299/84 (1984), 543–551.
4. Kawamoto, Hiroyuki, Dynamics of magnetic bearing,Journal of the Japanese Society of Precision Engineering,50, 5 (1984), 821–824. (in Japanese)