MODERN METHODS FOR CALCULATION AND ANALYSIS OF THE OPERATING MODES OF CENTRIFUGAL PUMPS WITH VARIABLE DRIVE AS A PART OF WATER SUPPLY AND WATER DRAINAGE SYSTEMS
Vestnik Polockogo gosudarstvennogo universiteta. Seriâ F. Prikladnye nauki. Stroitelʹstvo/Vestnik Polockogo gosudarstvennogo universiteta. Seriâ F. Stroitelʹstvo. Prikladnye nauki