1. D.E. Bray and R.K. Stanley, Nondestructive Evaluation a Tool in Design, Manufacturing and Service, McGraw Hill Book Company, New York, 1989.
2. H. Lee and G. Wade, eds, Imaging Technology, IEEE Press, New York, 1986.
3. D.R. Hamlin, J.L. Jackson, and T.A. Mueller, “Program for field validation of the synthetic aperture focusing technique for ultrasonic testing (SAFT UT),” US DOE Report, no. NUREG/CR-1885, 1981.
4. L.J. Busse, “Three-dimensional imaging using a frequency-domain synthetic aperture focusing technique,” IEEE Trans. Ultrason. Ferroelec. Freq. Contr., vol. 39, no. 2, pp. 174–179, 1992.
5. J.W. Goodman, Introduction to Fourier Optics, New York: McGraw-Hill, 1968.