2Alabuzhev P, Gritchin A, Kim L, et al. Vibration protecting and measuring system with quasi-zero stiffness [ M ]. New York: Taylor & Francis Group, 1989.
3Brennan M J, Kovacic I, Carrella A, et al. On the jump-up and jump-down frequencies of the Duffing 225 oscillator[ J ]. Journal of Sound and Vibration, 2008, 318 (4): 1250 - 1261.
4Carrella A, Brennan M J,Waters T P. Force transmissibility of a nonlinear vibration isolator with high-static-low-dynamic- stiffness [ C ]. Sixth EUROMECH Nonlinear Dynamics Conference, June 30 - July 4, 2008,.
5Saint Petersburg, RUSSIA. Carrella A, Brennan M J, Kovacic I, et al. On the force transmissibility of a vibration isolator with quasi-zero-stiffness [ J ]. Journal of Sound and Vibration,2009 ( 332 ) : 307 - 317.