1. A demonstration on man of electromotive changes accompanying the heart's beat;Waller;J Physiol,1887
2. Un nouveau galvanometre;Einthoven;Arch Neerland, des Sc Ex et Nat,1901
3. Le telecardiogramme;Einthoven;Arch Internat d Physiol,1906
4. Quoted from Besterman and Greece-Waller, pioneer of electrocardiography;Waller;Br Heart J,1979
5. A short account o f the origin and scope of electrocardiography;Waller;The Harvey Lectures,1913