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Publications by W. N. Spjeldvik
The Temporal Evolution of 3-9 MeV/nucleon He Flux Trapped in the Magnetosphere
Geophysical Research Letters
Earth
Planetary Sciences
Geophysics
POLAR Spacecraft Observations of Helium Ion Angular Anisotropy in the Earth's Radiation Belts
Annales Geophysicae
Planetary Sciences
Geology
Space
Atmospheric Science
Planetary Science
Astrophysics
Earth
Astronomy
