Economic Indicators Improvement due to the Introduction of Energy-Efficient TechnologiesE.K. Nikolaeva, N.A. Yudina, T.U. Dunaeva, S.A. Livshits and S.R. EnikeevaE3S Web Conf., 124 (2019) 05045DOI: https://doi.org/10.1051/e3sconf/201912405045