1. H. L. Libby,Introduction to Electromagnetic Nondestructive Test Methods (Kreiger, New York, 1979).
2. P. McIntire (ed.),Nondestructive Testing Handbook, Vol. 4, (American Society for Nondestructive Testing, Columbus, Ohio, 1986).
3. G. P. Singh and S. S. Udpa, Signal Processing and Pattern Recognition Methods for NDE?A State of the Art Survey, (Southwest Research Institute, San Antonio, Texas), to be published.
4. G. P. Singh and S. S. Udpa, The role of digital signal processing in NDT,NDT Int. 19(3):125?132 (1986).
5. A. V. Oppenheim and R. W. Schafer,Digital Signal Processing (Prentice-Hall, Englewood Cliffs, N.J., 1975).