1. Blekhman, I.I.: Synchronization of dynamic systems. Fizmatgiz, Moscow (1971). (in Russian)
2. Blekhman, I.I., Dzhanelidze, Yu.G.: Vibratory movement. Nauka, Moscow (1964). (in Russian)
3. Kobrinsky, A.E.: Mechanisms with elastic links. Nauka, Moscow (1964). (in Russian)
4. Kobrinsky, A.E., Kobrinsky, A.A.: Vibroimpact systems (dynamics and stability). Nauka, Moscow (1973). (in Russian)
5. Ksendzov, A.A., Nagaev, R.F.: Infinite-impact periodic modes in the problem of vibrotransport with tossing. Izv.AN SSSR, MTT, no. 5, pp. 29–35 (1971)