References
- Ionospheric Radio Propagation, National Bureau of Standards, Washington (June 1948).
- Rawer, K., Wireless Engineer, 29 (Nov. 1952), 287.
- Radio Propagation Unit, U.S. Army Signal Corps Report No. 9.
- Mitra, S. N. & Srivastava, R. B. L., Indian J. Phys., 38, No. 4 (April 1955), 167.
- MITRA, S. N. & SRIVASTAVA, R. B. L., Indian J. Phys., 38, No. 5 (May 1955), 22.
- Beghian, L. E., J.I.E.E., Part III, 95 (1948), 351.
- Chadha, K. C., J. Inst. Telecom. Engrs., 7, No. 2 (1961), 89.
- Rao, M. K., Majumdar, S. C. & Mitra, S. N., J.A.T.P., 24 (1962), 245.