1. Determination of the size of the heart by means of the x-rays;Bardeen, C. R. 1918;American Journal of Anatomy
2. 1961. Observations with the Frank system of vectorcardiography in left ventricular hypertrophy;Bristow, J.D.; Porter, G.A.; Griswold, H.E.;American Heart Journal
3. Estimation of left ventricular size by echocardiography;Gibson, D.G.;British Heart Journal,1973
4. Effects of chronically increased ventricular pressure on electrical forces of the heart;Hugenholtz, P. G.; Gamboa, R. 1964;Circulation; The vetorcardiogram in left ventricular hypertrophy,1959
5. Use of single plane angiocardiograms for the calculation of left ventricular volume in man;Sandler, H.; Dodge, H. T. 1968;American Heart Journal