1. Cann, R. G., 1992, “New Diagnostic Procedures for Locating Faults in Diesel Engines”,Diesel and Gas Turbine Worldwide, Vol. 24, No. 6, pp. 52–55, July-August.
2. Choi, H. I. and Williams, W. J., 1989, “Improved Time-Frequency Representation of Multi-Component Signals Using Exponential Kernels”,IEEE Trans. Acoust., Speech, and Signal Proc., Vol. 37, No. 6.
3. Coifman, R. R. and Wickerhauser, M. V., 1992, “Entropy-Based Algorithms for Best Basis Selection”,IEEE Trans. on Inf. Theory, Vol. 38, No. 2.
4. Coifman, R. R. and Wickerhauser, M. V., 1993, “Wavelet Packet Laboratory for Windows User’s Manual & Theoretical Manual”,Digital Diagnostics Corporation, A K Peters, Ltd., ISBN 1-56881-035-0.
5. Daubechies, I., 1992, “Ten Lectures on Wavelets”,SIAM, ISBN 0-89871-274-2.