Lavrenchenko, G.K., and B.H. Hrudka. 2021. “INCREASING THE EFFICIENCY OF THE SYSTEMS OF COMPRESSOR-PUMPING AND REFRIGERATION UNITS SUPPLYING LIQUID CO2 AND NH3 TO THE UNIT FOR CARBAMIDE SYNTHESIS”. Energy Technologies & Resource Saving, no. 3 (September), 23-32. https://doi.org/10.33070/etars.3.2021.02.