1. American Institute of Ultrasonics in Medicine, Intern Conf on Ultrasonics in Medicine, (Sept, 1957)
2. Ultrasonic dosimetry for medical use IRE National Convention Record;Tonberg,1957
3. Acoustic power measurement of ultrasonic therapy probe heads;Bindal,1975
4. Acoustic power measurement of medical ultrasonic probes using a strain gauge technique: feasibility report;Bindal,1978
5. Thermal methods for low level ultrasonic energy measurements;Herman,1977