Magnetic activity in the polar cap—A new index von Troshichev, O.A., Andrezen, V.G., Vennerstrøm, S., Friis-Christensen, E.

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The relationship between interplanetary quantities and magnetic activity in the southern polar cap von Troshichev, O.A., Andrezen, V.G.

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Electric fields and currents in the earth's polar caps von Pudovkin, M.I., Zaitseva, S.A., Bazhenova, T.A., Andrezen, V.G.

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