Atmospheric attenuation at 15, 31 and 53 GHz /
J. B. Snider [and] E. D. R. Westwater
- Washington, D. C. : United States Government Printing Office, 1969
- iii, 82 p. ; 26 cm.
- ESSA technical report ERL 156-WPL 11 .
Air-pilot guides--United States Air traffic control--United States Airplanes--Piloting