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1“... polar mesosphere summer echoes (PMSE) have been investigated in dependence on geomagnetic K indices...”
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2“... polar mesosphere summer echoes (PMSE) have been investigated in dependence on geomagnetic K indices...”
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3“... polar mesosphere summer echoes (PMSE) have been investigated in dependence on geomagnetic K indices...”
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4“... on geomagnetic K indices derived at the Auroral Observatory Tromsø (69.66°N, 18.94°E). During night-time...”
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5“... on geomagnetic K indices derived at the Auroral Observatory Tromsø (69.66°N, 18.94°E). During night-time...”
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