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2. Non paroxysmal A-V nodal tachycardia;Pick;Circulation,1957
3. Further studies on coronary sinus rhythm;Scherf;Amer. J. Cardiol.,1958
4. Electrophysiology of the heart;Hoffman,1960
5. Parasystole with a rapid ventricular center;Scherf;Amer. Heart J.,1961