1. Ultrasonic imaging of arterial wall echoes;Buschman;Ultrasound Med. Biol.,1973
2. Automatic eye visualization and ultrasonic intensity determination in focused beams by means of electrodynamic and capacitance methods;Filipczynski,1975
3. Statistical evaluation of the Doppler ultrasonic blood flowmeter;Flax;Biomed. Sci. Instrm.,1970
4. Transcutaneous measurements of blood velocity profiles and flow;Histand;Cardiovas. Res.,1973
5. A directional Doppler flowmeter;McLeod,1967