1. The normal and abnormal apexcardiogram. Its physiologic variation and its relation to intracardiac events;Benchimol, A.; Dimond, E.G.;American journal of Cardiology; 1961. The value of the apexcardiogram as a reference tracing in phonocardiography,1963
2. The clinical significance of systolic retraction of the apical impulse;British Heart Journal,1965
3. The apexcardiogram: its normal features explained by those found in heart disease;Coulshed, N.; Epstein, E.J.;British Heart Journal,1963
4. 1969. Praecordial tracings of myocardial aneurysms;El-Sherif, A.; Saad, Y.; El-Said, G.;British Heart Journal
5. Cardiology;Evans, W.,1956