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Frequency dependence of VHF ionospheric scattering

Blair, James C., author.
Washington, D.C. : National Bureau of Standards, United States Department of Commerce, Office of Technical Services, 1959. 1959

HF radio noise in the topside ionosphere

Rush, C. M. (Charles M.)
[Washington, D.C.] : U.S. Dept. of Commerce, National Telecommunications and Information Administration, [1980] 1980

The high-latitude ionosphere and its effects on radio propagation

Hunsucker, R. D.
New York : Cambridge University Press, 2002. 2002

Radio ray propagation in the ionosphere.

Kelso, John Morris, 1922-
New York, McGraw-Hill [1964] 1964

Service area of an airborne television station

Decker, Martin T., author.
Washington, D.C. : National Bureau of Standards, United States Department of Commerce, Office of Technical Services, 1959. 1959