@article{Bangoyan2013research,
author={Bangoyan, E.. and Tupov, V.V.},
title={Research of Acoustic Characteristics related to Noise Release Mufflers  of Motor Transport Internal-Combustion Engines},
journal={Safety in Technosphere},
publisher={INFRA-M Academic Publishing LLC.},
year={2013},
pages={30-35},
volume={2},
issue={4},
}