Sagitov, A., K. Sherov, T. Nasad, G. Abdugaliyeva, and A. Okimbayeva. “Calculation of Multi-Blade Rotary-Friction Tool Shaft for Strength”. Eurasian Journal of Applied Engineering and Technology (EJAET), vol. 144, no. 3, Sept. 2023, pp. 8-19, doi:10.32523/2616-7263-2023-144-3-8-19.