1.S.Y. Kung, K.S. Arun, and B. D. Rao, “A Realization Approach to Spectral Line Estimation,” IEEE Proc. of the Conference on Systems, Man and Cybernetics, Delhi, India, Jan. 1984

2.B. D. Rao and S.Y. Kung, “State Space Approach to the 2-D Harmonic Retrieval Problem,” IEEE International Conference on Acoustics, Speech and Signal Processing, , San Diego, CA 4.10.1-4.10.3, Mar. 1984

3.B. D. Rao and S.Y. Kung, “Adaptive Notch Filtering for the Retrieval of Sinusoidal Signals in Colored Noise,” IEEE Transactions on Acoustics Speech Signal Processing, ASSP-32:4, Pages: 791-802, Aug. 1984