TY JOUR TI DESIGN OF THE OPTIMAL PIPELINE ROUTE OF THE HEAT NETWORK KW heat networks KW multi-criteria optimization KW system analysis KW heat supply KW pipelines JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Chuykina, A.A. AU Loboda, A.V. AU Sotnikova, O.A. PY 2021 IS 6 PB Belgorod State Technological University named after V.G. Shukhov