1. Periodic motion of a system consisting of a small pellet in a hollow cavity;Brushtein;Mekhanika i mashinostroenie, Izvestiya Akademii nauk SSSR, Otdelenie Technicheskikh Nauk,1959
2. Investigation of the dynamics and stability of vibrating systems;Brushtein;Trudy Instituta mashinovedeniya, Academiya nauk SSSR,1961
3. Dynamic effects of backlash;Goodman;Machine Design,1963
4. Dynamics of nonlinear components with breaks in the kinematic linkage;Stepanenko;Mekhanika Mashin (Moscow),1964
5. Dynamics and stability of elastic systems with backlash;Babitskii;Teoriya Mashini Mekhanizmov,1965