Geletukha, G.G., T.A. Zheliezna, and A.I. Bashtovyi. 2016. “ANALYSIS OF OPERATION MODELS IN THE DISTRICT HEATING SECTOR OF EU COUNTRIES. PART 2”. Thermophysics and Thermal Power Engineering 38 (5), 78-85. https://doi.org/https://doi.org/10.31472/ihe.5.2016.09.