1. 9) NAKAI M. Squealing of cylindrical roller bearing. JSME Int, J.. (1991) vol.34-1, Ser. 3, p.72.
2. 11) FUKUYAMA H. Superconductin Magnetic Bearing Using MPMG YBaCuO. 4th Int. Symp. Superconductivity Program & Abstracts. (1991) vol.151,
3. 17) Proceedings of the International Conference on Motion and Power Transmissions. 日本機械学会機素潤滑設計部門.. (1991)
4. 24) Proc. IEEE Micro Electro Mechanical Systems Workshop. (1991)