1. Analysis of the electrocardiograms obtained from 1,000 young healthy aviators;Graybiel;Am. Heart J.,1944
2. Electrocardiography in the selection of Royal Canadian Air Force air crew;Manning;Circulation,1954
3. Experimentelle Untersuchungen uber Reizbeldung und Reizleitung in Atrioventrikularknoten;Zahn;Arch. ges. Physiol.,1913
4. Experiments on the origin and propagation of the impulse in the heart. III. The effect of vagal stimulation on the location of the pacemaker in auriculoventricular rhythm, and the effect of vagal stimulation on this rhythm;Meeks;Heart,1913
5. Upper auriculo-ventricular rhythm (coronary sinus rhythm) experimentally produced;Scherf,1944