1. Robi Polikar, The Wavelet Tutorial.
2. Burhan Ergen, Signal and Image Denoising using Wavelet Transform, pp. 495.
3. B. Pilgram, W. Schappacher and G. Pftirtscheller, A Noise Reduction Method using Singular Value Decomposition, Engineering in Medicine and Biology Society, vol. 6, pp. 2756-2758, (1992).
4. R. M. Rao and A. S. Boparrdikar, Wavelet Transforms: Introduction to Theory and Applications, 1st ed., Pearson Education, (2006).
5. A. Ambardar, Analog and Digital Signal Processing, 2nd ed., Thomson Brooks/Cole, (2002).