@article{Drokonov  2014acoustics,
author={Drokonov  , A.. and Drokonov  , A..},
title={Acoustics gas pumping units horsepower range 10 ... 12 MW},
journal={Bulletin of Bryansk state technical university},
publisher={Bryansk State Technical University},
year={2014},
pages={23-26},
volume={2014},
issue={1},
}