Realization of a class of two-dimensional analog ladders with applications to wave digital filters. - M. Omair Ahmad; C. H. Reddy; Venkatanarayana Ramachandran; M. N. Shanmukha Swamy (ICASSP, 1978)

Generation of two-dimensional digital functions without non-essential singularities of the second kind. - C. H. Reddy; P. Karivaratharajan; M. N. S. Swamy; Venkatanarayana Ramachandran (ICASSP, 1979)

Studies on N-dimensional filter transfer functions without second kind singularities. - C. H. Reddy; P. Karivaratha Rajan; M. N. S. Swamy (ICASSP, 1980)