FedorіvM. Y., I. D. Halushchak, and KurliakP. О. 2018. “The Reliability Increase of the Electric Drives for Pumping Units”. Prospecting and Development of Oil and Gas Fields, no. 2(67) (June), 47-52. https://doi.org/10.31471/1993-9973-2018-2(67)-47-52.