1. An ultrasonic study of contact between stationary and sliding surfaces;Kendall,1971
2. Ultrasound transmission through contact of solids;Manolov,1972
3. A study on the transmission and reflection of an ultrasonic beam at machined surfaces pressed against each other;Arakawa;Mat Eval,1983
4. Contact pressure measurements by means of ultrasonic waves;Minakuchi;Bull JSME,1985
5. Contact pressure measurements by means of ultrasonic waves;Minakuchi;Bull JSME,1985