1. Steady state motion of one and two degrees of freedom vibrating systems with a non-linear restoring force;Sethna,1959
2. Harmonic oscillations of non-linear two-degree-of-freedom systems;Huang;J. appl. Mech.,1955
3. Harmonic oscillations of non-linear two-degree-of-freedom systems;Huang;Trans. ASME,1955
4. Steady state behaviour of systems provided with non-linear dynamic vibration absorbers;Arnold;J. appl. Mech. Trans. ASME,1955
5. Steady state behaviour of systems provided with non-linear dynamic vibration absorbers;Arnold;Trans. ASME,1955