1. The diagnostic accuracy of Q3 and related electrocardiographic items for the detection of patients with posterior wall myocardial infarction;Weisbart;Am Heart J,1955
2. Differentiation Between Normal and Abnormal in Electrocardiography;Simonson,1961
3. Coronary Heart Disease;Plotz,1957
4. The amplitude of T wave of electrocardiograms of healthy people. The Treatment and the Diagnosis in General Hospital. Ed: for M.I;Ovsyshcher;Smirnov, Medicina, Leningrad,1971
5. Ovsyshcher IA: The possibilities of ECG classification through the Q/R ratios, Ibid