(2) T. Hanamoto, H. Ikeda, Y. Tanaka, and T. Mochizuki: “Design of the Digital Speed Control System for the Resonance System Based on the Pole Assignmment Methods”, T. IEE Japan, Vol. 117-D, No. 12, pp. 1455-1462 (1997-12) (in Japanese)
(3) N. Takesue, J. Furusho, and K. Iwakoshi: “A Condsideration on Inertia-Ratio and Vibration Control of Two-Inertia System”, IEEJ Trans. IA, Vol. 123, No. 2, pp. 149-155 (2003-2) (in Japanese)