[1]
I. Penkov and D. Aleksandrov 2022. Analysis and study of the influence of the geometrical parameters of mini unmanned quad-rotor helicopters to optimise energy saving . International Journal of Automotive and Mechanical Engineering. 14, 4 (Dec. 2022), 4730–4746. DOI:https://doi.org/10.15282/ijame.14.4.2017.11.0372.