1. The mechanism and graphic registration of the heart beat;Lewis,1925
2. Extrasystoles and allied arrhythmias;Scherf,1953
3. Die Unregelmässige Herztätigkeit und ihre klinische Bedeutung;Wenckebach,1914
4. On the effects of electrical stimulation of the mammalian heart;Cushny;J. Physiol.,1897
5. Stimulation of the isolated ventricle, with special reference to the development of spontaneous rhythm;Cushny;Heart,1912