Analysis of cardiac late potentials using the Wigner-Ville distribution - D. J. Waldo; B. Ravi Sekar Reddy; A. J. Greenspon; G. A. Kidwell; Prabhakar R. Chitrapu (1992 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP '92, San Francisco, California, USA, March 23-26, 1992, 1992)