@article{Usmanov2015spread,
author={Usmanov, I.Y. and Ovechkina, E.S. and Shayakhmetova, R.I.},
title={Spread of oil sludge effect},
journal={Bulletin of Nizhnevartovsk State University},
publisher={Nizhnevartovsk State University},
year={2015},
pages={84-94},
volume={},
issue={3},
}