For citations:
Ismaiylov G.Kh., Perminov A.V., Ismaiylova I.G. Analysis technique of functioning of complex water management systems by the example of the Volga-Kama cascade of hydraulic units. Prirodoobustrojstvo. 2021;(2):131-140. (In Russ.) https://doi.org/10.26897/1997-6011-2021-2-131-140