1. A History of Electrocardiography;Burch,1964
2. Clinical Electrocardiography, Part I. The Arrhythmias;Katz,1956
3. Clinical Electrocardiography, Part I. The Arrhythmias;Katz,1956
4. Extrasystoles and Allied Arrhythmias;Scherf,1953
5. Extrasystoles and Allied Arrhythmias;Scherf,1953