1. Pulsed ultrasonic flowmeter;Baker,1966
2. A sonic transcutaneous blood flowmeter;Baker;Proc. 17 th Ann. Conf. Eng. Med. Biol.,1964
3. Barefoot, C. A.1970). Electromagnetic catheter blood flow probe. U.S. Patent 3, 487, 826.
4. Calibration characteristics of the pulsed field electromagnetic flowmeter;Beck;Amer. J. Med. Electron,1965
5. Thin film gauges for the measurement of velocity or skin friction in air, water or blood;Bellhouse;J. Sci. Inst.,1968