For citations:
Sychov A.O., Kharchenko V.V. WAYS TO IMPROVE TECHNICAL AND ECONOMIC INDICATORS OF A SURFACE WATER HEAT PUMP BASED SYSTEMS. Alternative Energy and Ecology (ISJAEE). 2015;(10-11):84-90. (In Russ.) https://doi.org/10.15518/isjaee.2015.10-11.008