@article{Kolosova2014explicit,
author={Kolosova,  .. and Boev, N.. and Todorov , N..},
title={Explicit expressions for pressure in acoustic waves multiply reflected from reflecting surfaces of canonical form},
journal={Vestnik of Don State Technical University},
publisher={Don state technical University},
year={2014},
pages={5-14},
volume={14},
issue={1},
}