1. Vary, A., “Quantitative ultrasonic evaluation of mechanical properties of engineering materials” Proceedings of the First International Symposium on Ultrasonic Materials Characterization, H. Berger and M. Linzer ed., NBS., Gaithersburg, Md., USA, June 7–9, 1978
2. “Structure analysis by scattered ultrasonic radiation”;Goebels,1980
3. “Ultrasonic materials characterization”;Smith;NDT International,1987
4. “Relationship between ultrasonic measurements and microstructural characteristics of type 308 stainless steel welds”;Wang;Materials Evaluation,1989
5. “Surface waves for material characterization”;Rose;Journal of Applied Mechanics,1990