Graphical summary of variations in monthly median foF2
By: by R.E. McDuffie
Series: NBS report -- 5038; NBS Report -- 5038.
Publisher: Boulder Laboratories, National Bureau of Standards, U.S. Dept. of Commerce
Published: 1957
Place of publication: Boulder, Colo
Language: eng
Number of pages: 23
Subjects: Ionospheric critical frequencies; Charts, diagrams; F region; Solar radiation
Notes: "January 8, 1957."

"NBS project 8240-12-8244."