1. Electronic sector scanning for ultrasonic diagnosis;Somer;Ultrasonics,1968
2. Beam steering and linear arrays;von Ramm;IEEE Trans Biomedical Engineering,1983
3. Electronic steering and focussing of ultrasonic beams in tube inspection;Whittington;Ultrasonics,1969
4. Development of an ultrasonic imaging system for inspection in nuclear reactor pressure vessels;Becker;Electric Power Research Institute, Palo Alto, Report NP/1229,1979
5. Real time synthetic aperature imaging system;Kino,1980