OPTIMIZATION OF THE REGIONAL ENERGY SYSTEM WITH HIGH POTENTIAL OF USE OF BIO-WASTE AND BIORESOURCES AS ENERGY SOURCES WITH RESPECT TO ECOLOGICAL AND ECONOMIC PARAMETERS: THE KRASNODAR KRAI CASE ArticleRatner S.V., Iosifov V.V., Ratner M.D.Региональная экономика: теория и практика. Том 16. 2018. С. 2383-2398