@article{Shishkin2023gas-driven,
author={Shishkin, N.. and Marysheva, M..},
title={Gas-driven downhole pumping unit for oil production  from directional and horizontal wells},
journal={Oil and gas technologies and environmental safety},
publisher={Astrakhan State Technical University},
year={2023},
pages={37-42},
volume={},
issue={1},
}