共 4 条
[1]
The application of ionospheric data to radio-communication problems : Part I
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PROCEEDINGS OF THE PHYSICAL SOCIETY,
1940, 52
:518-533
[3]
Relation between actual and virtual ionospheric height
[J].
PHYSICAL REVIEW,
1940, 57 (02)
:87-94
[4]
PIERCE GW, CRUFT LABORATORY LEC