@article{Ivanov2013ultrasonic,
author={Ivanov, V.A. and Gasparyan, G.D.},
title={ULTRASONIC WAVES IMPACT ON THE BARK FOR BARKING EFFECTIVENESS ASSESSMENT},
journal={Bulletin of KSAU},
publisher={Krasnoyarsk State Agrarian University},
year={2013},
pages={35-40},
volume={},
issue={10},
}