Development of assessing indicator for the technical condition of gearboxesMikhail Kostomakhin, Alexander Sayapin, Efim Pestryakov, Nikolai Petrishchev, Mikhail Tseiko and Nikolay KostomakhinE3S Web Conf., 592 (2024) 03022DOI: https://doi.org/10.1051/e3sconf/202459203022