@article{Lin_2012,
title={A higher-order split-step Fourier parabolic-equation sound propagation solution scheme},
volume={132},
ISSN={1520-8524},
url={http://dx.doi.org/10.1121/1.4730328},
DOI={10.1121/1.4730328},
number={2},
journal={The Journal of the Acoustical Society of America},
publisher={Acoustical Society of America (ASA)},
author={Lin,
Ying-Tsong and Duda,
Timothy F.},
year={2012},
month=jul,
pages={EL61–EL67} }