1. P. Hopkins, “Learning From Pipeline Failures,” in WTIA / APIA Welded Pipeline Symposium, pp. 0–15 (2008).
2. Detection, Localisation and Assessment of Defects in Pipes Using Guided Wave Techniques: A Review
3. Palit Sagar, S. "Modern Ultrasonic Technique for Defect Detection in Cast Materials.", 88–94 (2008).
4. Wright, William Matthew David. Air-coupled ultrasonic testing of materials. Diss. University of Warwick, 1996.
5. A Baseline and Vision of Ultrasonic Guided Wave Inspection Potential