CONSTRUCTION OF TREND COMPONENT OF ADDITIVE LONG-TERM FORECASTING MODEL OF ELECTRICITY CONSUMPTION VOLUME OF THE WHOLESALE ELECTRIC ENERGY AND POWER MARKET OF RUSSIA, BY THE EXAMPLE OF UNITED POWER SYSTEM OF THE URAL
Vestnik Ûžno-Uralʹskogo gosudarstvennogo universiteta. Seriâ, Èkonomika i menedžment