@article{Spirin2020analysis, author={Spirin, Y.A. and Puntusov, V.G.}, title={Analysis of energy efficiency of polder of pumping stations in a Slavsk district of the Kaliningrad region}, journal={Melioration and Water Management}, publisher={ANO Editorial Board Melioration and water management}, year={2020}, pages={15-20}, volume={2020}, issue={2}, }