1. Transcutaneous Measurement of Aortic Blood Velocity by Ultrasound. A Theoretical and Experimental Approach;Angelsen, B.A.J.,1975
2. Analog Estimation of the Maximum Frequency of Doppler Spectra in Ultrasonic Blood Velocity Measurements;Angelsen, B.A.J.,1976
3. Diagnosis of valvular heart disease using transcutaneous Doppler ultrasound;Brubakk, A.O.; Angelsen, B.A.J.; Hatle, L.;Cardiovascular Research,1977
4. Determination of pressure gradient in mitral stenosis with a non-invasive ultrasound Doppler technique;Holen, J.; Aaslid, R.; Landmark, K.; Simonsen, S.;Acta Medica Scandinavica,1976
5. Large amplitude pulsatile water flow across an orifice. Transactions of the ASME. Series G;Yellin, E.L.; Peskin, C.S.;Journal ofDynamic Systems, Measurement, and Control,1975