1. Theory of oscillations;Andronov,1966
2. Contact and rubbing of flat surface;Archard;J. Appl. Phys.,1953
3. The temperature of rubbing surfaces;Archard;Wear,1959
4. Oscillations of lumped deterministic systems;Awrejcewicz,1996
5. Asymptotic approaches in nonlinear dynamics: New trends and applications;Awrejcewicz,1998