1. Sulima A.M., Evstigneev M.I. Kachestvo poverkhnostnogo sloya i ustalostnaya prochnost' detaley iz zharoprochnykh i titanovykh splavov (Quality of surface layer and fatigue strength of details made of heat-resistant and titanium alloys). Moscow: Mashinostroenie, 1974. (in Russian).
2. Severdenko V.G., Klubovich V.V., Stepanenko A.V. Obrabotka metallov davleniyem s ultrazvukom (Ultrasonic pres-sure treatment of metals). Minsk: Nauka i Tekhnika, 1973. (in Russian).
3. Mukhanov I.I. Impulsnaya uprochnyayushche-chistovaya obrabotka detaley mashin ultrazvukovym instrumentom (Pulse hardening and finishing of machine parts with ultrasonic tools). Moscow: Mashinostroenie, 1978. (in Russian).
4. Belotsky A.V. et al. Ultrazvukovoye uprochneniye metallov (Ultrasonic hardening of metals). Kyiv: Tekhnika, 1989. (in Russian).
5. Sealy M.P. et al. Hybrid Processes in Additive Manufacturing. J. Manuf. Sci. Eng. 2018. 140 (6): 060801. https://doi.org/10.1115/1.4038644