Geomagnetic Semiannual Variation Is Not Overestimated And Is Not An Artifact Of Systematic Solar Hemispheric Asymmetry L Svalgaard Geophysresletters 2011
Geomagnetic Semiannual Variation Is Not Overestimated and Is Not an Artifact of Systematic Solar Hemispheric Asymmetry_ L Svalgaard_ GeoPhysResLetters_2011.pdf