1. A.T. Reisner, G.D. Clifford, R.G. Mark, The physiological basis of the electrocardiogram, in: G.D. Clifford, F. Azuaje, P.E. McSharry (Eds.) Advanced Methods for ECG Analysis, Artech House, Boston, 2006 (Chapter 1 ).
2. Human identification using heartbeat interval features and ECG morphology;Singh;Adv. Intell. Syst. Comput.,2013
3. G. Forsen, M. Nelson, R. Staron Jr., Personal attributes authentication techniques, Technical Report RADC-TR-77-333, Rome Air Development Center, NY, USA, 1977.
4. ECG analysis;Biel;IEEE Trans. Instrum. Meas.,2001
5. Precordial voltage variation in the normal electrocardiogram;Larkin;J. Electrocardiol.,1980