1. (1) K. Ohno and R. Horowitz: “A multi-rate nonlinear state estimator for hard disk drives”, Amer. Control Conf., pp. 3083-3088 (2003)
2. (2) M. Hirata, M. Takiguchi, and K. Nonami: “Track-following control of hard disk drives using multi-rate sampled-data H∞ control”, Conf. Decision Contr., pp. 3414-3419 (2003)
3. (3) L. Yang and M. Tomizuka: “Multi-rate short-seeking control of dual actuator hard disk drives for computation saving”, Amer. Control Conf., pp. 3210-3215 (2005)
4. (4) Y. Soeno, M. Moriya, K. Ito, K. Hattori, A. Kaizu, T. Aoyama, M. Matsuzaki, and H. Sakai: “Feasibility of discrete track perpendicular media for high track density recording”, IEEE Trans. Mag., Vol. 39, No. 4, pp. 1967-1971 (2003)
5. (5) A. H. Sacks, M. Bodson, and W. C. Messner, “Advanced Methods for Repeatable Runout Compensation, IEEE Trans. Mag., Vol. 31, No. 2, pp. 1031-1036 (1995)