Plass, K G A new ultrasonic flowmeter for intravascular application. [electronic resource] - IEEE transactions on bio-medical engineering Oct 1964 - 154-6 p. digital Publication Type: Journal Article ISSN: 0018-9294 Standard No.: 10.1109/tbme.1964.4502325 doi Subjects--Topical Terms: Blood Flow VelocityPulseUltrasonics