523,655 ULTRASONIC Ultrasonic imaging and holography .Medical, sonar, and optical applications.Proceedings of the U.S.-Japan Science Cooperation Seminar on Pattern Information Processing in Ultrasonic Imaging, held January 7-13, 1973, at the University of Hawaii,Honolulu, Hawaii. Ed. by George W.Stroke /i in./. New York 1974- Plenum Press 8° s. XI, nlb. 1, 642, ilustr.