1. Hale, R.D. “Ultrasonic Nondestructive Evaluation Techniques and the Effects of Fiber Architecture on Mechanical Performance in Multi-Directionally Reinforced Textile Composites,” Ph.D. Dissertation, Iowa State University, 1995.
2. Review of Progress in Quantitative NDE;RD Hale,1994
3. Review of Progress in Quantitative NDE;RD Hale,1995
4. Long, E.R. “Enhancement of Ultrasonic Images of Defects in 3-D Composite,” Journal of Reinforced Plastics and Composites, Volume 13, Technomic Publishing, March, 1994. pp. 271–285.
5. Post, D., Han, B. and Ifju P., High Sensitivity Moiré, Springer-Verlag, 1994.