REFERENCES
- Bennet, R. R. & Fulton, J. appl. Phys.
- Rice, S. O., Bell Syst. tech. J., (1944), 23–282; ibid., 1945.
- Wonham, W. M. & Fuller, A. T., Journal of Elect. & Control, (1958), 24–46; IV-567.
- Lampard, D. G. & Harvey, I. K., Journal of Elect. & Control (Sept. 1960).