Assessment of accumulated personnel training as an indicator of professional development in the context of the formation of the knowledge economyA.F. Stepus, O.B. Glavatskikh, N.N. Pushina, A.I. Troyanskaya and N.N. KharitonovaE3S Web Conf., 296 (2021) 08007DOI: https://doi.org/10.1051/e3sconf/202129608007