The diurnal- and sunspot-cycle variation of the layers E, F1 and F2 of the ionosphere as observed in Norway during the period 1932-1956
Series: Norske videnskaps-akademi i Oslo. Geofysiske publikasjoner,; v. 20, no. 6
Publisher: I kommisjon hos Aschehoug
Published: 1958
Place of publication: Oslo
Language: eng
Number of pages: 14
Subjects: Sunspots.; Ionosphere.; Meteorology -- Norway.
Notes: Bibliography: p. 14.
Cover title.