Examples of the use of letter symbols in ionospheric sounding reduction
By: by S.C. Gladden
Contributors: Boulder Laboratories (U.S.); United States. National Bureau of Standards
Series: NBS Report -- 5032
Publisher: Boulder Laboratories, National Bureau of Standards, U.S. Dept. of Commerce
Published: 1956
Place of publication: Boulder, Colo
Language: eng
Number of pages: 30
Subjects: Ionograms; Ionosperic sounds
Notes: "NBS project 8240-12-8244."

"December 7, 1956."