On the Quasi-Five-Year Variation of Nitrate Abundance in Polar ice and Solar Flare Activity in the Past

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Solar Physics, Vol. 188, Iss. 1, 1999-08 ,pp. : 187-190

Springer Publishing Company

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Nitrate Concentration in Greenland Ice: an Indicator of Changes in Fluxes of Solar and Galactic High-Energy Particles

By Ogurtsov M.G.   Jungner H.   Kocharov G.E.   Lindholm M.   Eronen M.  

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Springer Publishing Company

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The nitrate content of Greenland ice and solar activity

By Kocharov G.   Kudryavtsev I.   Ogurtsov M.   Sonninen E.   Jungner H.  

Astronomy Reports, Vol. 44, Iss. 12, 2000-12 ,pp. : 825-829

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High-Resolution Studies of the Solar Polar Magnetic Fields

By Varsik J.R.   Wilson P.R.   Li Y.  

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X-ray interferometry with transmissive beam combiners for ultra-high angular resolution astronomy

By Skinner Gerald   Krizmanic John  

Experimental Astronomy, Vol. 27, Iss. 1-2, 2009-12 ,pp. : 61-76

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