Authors: Liu, KF Kujath, MR Zheng, WP

Citation: Kf. Liu et al., Evaluation of damping non-proportionality using identified modal information, MECH SYST S, 15(1), 2001, pp. 227-242

Authors: Liu, KF Kujath, MR Zheng, WP

Citation: Kf. Liu et al., Quantification of non-proportionality of damping in discrete vibratory systems, COMPUT STRU, 77(5), 2000, pp. 557-569

Authors: Liu, K Kujath, MR

Citation: K. Liu et Mr. Kujath, Adaptation of the concept of modal analysis to time-varying structures, MECH SYST S, 13(3), 1999, pp. 413-422