@article{article0c7a4926,
title   = {Noise reduction in biomedical speech signal processing based on time and frequency Kalman filtering combined with spectral subtraction},
author = {Silva, Leandro Aureliano da and Joaquim, Marcelo Basilio},
year = {2008},
doi = {10.1016/j.compeleceng.2007.10.007},
journal   = {Computers and Electrical Engineering}
}