๐”– Bobbio Scriptorium
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Averages of critical frequencies and virtual heights of the ionosphere, observed by the National Bureau of Standards at Washington, D.C., April to June, 1940


Book ID
119733363
Publisher
American Geophysical Union
Year
1940
Tongue
English
Weight
97 KB
Volume
45
Category
Article
ISSN
0148-0227

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