Y. Gui and H. K. Kwan, “Adaptive Subband Wiener Filtering for Speech Enhancement Using Critical-Band Gammatone Filterbank,” 48th Midwest Symposium on Circuits and Systems, Vol. 1, 7-10 August 2005, pp. 732- 735.
 Y. Ephraim and D. Malah, “Speech Enhancement Using a Minimum Mean Square Error Short-Time Spectral Amplitude Estimator,” IEEE Transaction on Speech Audio Processing, Vol. 32, No. 6, 1984, pp. 1109-1121.
 S. F. Boll, “Suppression of Acoutics Noise in Speech Using Spectral Subtraction,” IEEE Transaction on Acoustics, Speech, Signal Processing, Vol. 27, No. 2, 1979, pp. 113-120. doi:10.1109/TASSP.1979.1163209
 K. A. Sheela, Ch. V. R. Rao, K. S. Prasad and A. V. N. Tilak, “A New Noise Reduction Pre-Processor for Mobile Voice Communication Using Perceptually Weighted Spectral Subtraction Method,” 3rd International Conference on Mobile Ubiquitous and Pervasive Computing, VIT University, 16-19 December 2006.
 G. Farahani, S. M. Ahadi and M. M. Homayounpoor, “Robust Feature Extraction of Speech via Noise Reduction in Autocorrelation Domain,” Lecture Notes in Computer Science 4105, Springer-Verlag, 2006, pp. 466-473.
 P. Scalart and J. V. Filho, “Speech Enhancement Based On a Priori Signal to Noise Estimation,” Proceedings of IEEE International Conference on Acoustics, Speech Signal Processing, Atlanta, Vol. 2, May 1996, pp. 629- 632. doi:10.1109/ICASSP.1996.543199
 J. E. Porter and S. F. Boll, “Optimal Estimators for Spectral Restoration of Noisy Speech,” Proceedings of IEEE International Conference on Acoustics, Speech Signal Processing, Vol. 9, March 1984, pp. 53-56.
 I. Cohen, “Optimal Speech Enhancement under Signal Presence Uncertainty Using Log-Spectral Amplitude Estimator,” IEEE Signal Processing Letters, Vol. 9, No. 4, 2002, pp. 113-116. doi:10.1109/97.1001645
 A Noisy Speech Corpus for Evaluation of Speech Enhancement Algorithms, 2011. http://www.utdallas.edu/~loizou/speech/noizeus/
 Y. Hu and P. C. Loizou, “Evaluation of Objective Quality Measures for Speech Enhancement,” IEEE Transaction on Audio, Speech and Language Processing, Vol. 16, No. 1, 2008, pp. 229-238. doi:10.1109/TASL.2007.911054