1. Physical principles of measurements with EMAT transducers;Thompson,1990
2. Laser optoacoustics;Gusev,1993
3. Laser ultrasonics: techniques and applications;Scruby,1990
4. NDE applications of air-coupled ultrasonic transducers;Grandia,1995
5. Inspection of CFRP components by ultrasonic imaging with air Coupling;Hillger;Insight,2004