1. D. Abdelgham, F.B. Reguig, Short-time Fourier transform analysis of the phonocardiogram signal, in The 7th IEEE International Conference on Electronics, Circuits, and Systems ,2000, ICECS (2000), vol. 2 (2000)
2. M. Abhishek, G.R. Sinha, Denoising of PCG signal by using wavelet transforms. Adv. Comput. Res. 4(1), 46–49 (2012)
3. M. Abhishek et al., Comparison of wavelet transforms for denoising and analysis of PCG signal. I Manag. J. Commun. Eng. Syst. 1(1), 48–52 (2011)
4. P. Anindya, E.A. Wan, A.T. Nelson, Noise reduction for heart sounds using a modified minimum-mean squared error estimator with ECG gating, in 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS’06, (2006)
5. F. Bai et al. Studying on denoising algorithm of heart sound signal based on the generalized mathematical morphology, in Signal Processing (ICSP), IEEE 10th International Conference, (2010)