Methodology for calculating the energy consumption of freight wagons during transportation by trains for private enterprisesMasud Masharipov, Abdulaziz Gulamov, Marufjan Rasulov, Shinpolat Suyunbaev, Shokhijokhon Khujaev and Kamola MustafaevaE3S Web Conf., 515 (2024) 04021DOI: https://doi.org/10.1051/e3sconf/202451504021