Ultrasonics. Pulse-echo scanners. Techniques for calibrating spatial measurement systems and measurement of system point-spread function response— 50 стр.
Ultrasonics - Pulse-echo scanners - Part 1: Techniques for calibrating spatial measurement systems and measurement of system point-spread function response (IEC 61391-1:2006); German version EN 61391-1:2006— 45 стр.
Medical electrical equipment. Particular requirements for safety. Particular requirements for the safety of ultrasonic physiotherapy equipment— 26 стр.