Cyclic and Dyadic Shifts, Walsh-Hadamard Transform, and the H Diagram. - Krishnaiah Revuluri; K. R. Rao 001; M. A. Narasimhan; Nasir Ahmed 001 (IEEE Trans. Computers, 1974)

Image Data Processing by Hadamard-Haar Transform. - K. R. Rao 001; M. A. Narasimhan; Krishnaiah Revuluri (IEEE Trans. Computers, 1975)

Processing Image Data by Hybrid Techniques. - K. R. Rao 001; M. A. Narasimhan; W. J. Gorzinski (IEEE Trans. Syst. Man Cybern., 1977)