1. Über die Richtung und die manifeste Grösse der Potentialschwankungen im menschlichen Herzen und über den Einfluss der Herzlage auf die Form des Elektrokardiogramms;Einthoven;Pflüger's Arch. f. d. ges. Physiol.,1913
2. The Mechanism and Graphic Registration of the Heart Beat;Lewis,1925
3. Relations Between the Potential Variations of the Ventricular Surfaces and the Form of the Ventricular Electrocardiogram in Leads From the Precordium and the Extremities;Wilson;Tr. A. Am. Physicians,1941
4. The Ventricular Complex in Multiple Precordial Leads;Johnston;Mod. Concepts Cardiovasc. Dis.,1943
5. Electrocardiograms That Represent the Potential Variations of a Single Electrode;Wilson;Am. Heart J.,1933