1. and , ‘Tellegen's theorem and electrical networks’, Research Monograph No. 58, MIT Press, Cambridge, Massachussets and London, England, 1970.
2. and , Digital Signal Processing, Prentice-Hall, Englewood Cliffs, N. J., 1975, pp. 173–182.
3. ‘On the decomposition of vector spaces’, Research Report, E. E. Department, I. I. T., Bombay, April 1983.
4. ‘Topological transformations of electrical networks’, Electronics Research Laboratory, Memorandum No. UCB/ERL M84/109, December 1984.