1. Principles of Aperture and Array System Design;Steinberg,1976
2. Improvements in ultrasonic flaw detection;Bradfield;Journal of the Britsh Institution of Radio Engineers,1954
3. Electronic sector scanning for ultrasonic diagnosis;Somer;Ultrasonics,1968
4. Entwicklung eines elektronisch fokussier- und schwenkbaren Realtime-Abbildungssystems für die Ultraschall-Werkstoffprüfung;Gebhardt,1981
5. Defect reconstruction and classification by phased arrays;Gebhardt;Materials Evaluation,1982