U. Fermor

Measurement of systolic and diastolic flow rates in the coronary artery system by x-ray densitometry.

R. Körfer, H. Pannek, M. Block, 1983, Circulation.

Videodensimetric Measurement of Phasic Blood Flow in Aortocoronary Bypass Grafts

H. Pannek, P. Spiller, F. Schmiel, 1980 .