M. Janulin, O. Vrublevskyi, and A. Prokhorenko, “Energy Minimization in City Electric Vehicle using Optimized Multi-Speed Transmission ”, Int. J. Automot. Mech. Eng., vol. 19, no. 2, pp. 9721–9733, Jun. 2022, doi: 10.15282/ijame.19.2.2022.08.0750.