1. Essentials of electrocardiography;Ashman,1945
2. Essentials of electrocardiography;Ashman,1945
3. Clinical electrocardiography, Part I. The arrhythmias;Katz,1956
4. Clinical electrocardiography, Part I. The arrhythmias;Katz,1956
5. The mechanism of auricular paroxysmal tachycardia;Barker;Am. Heart J.,1943