Fig. 13.


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Absolute integrated-fluence spectra (Tylka & Dietrich 2009) of two high-energy SEP events considered by Usoskin & Kovaltsov (2012) as reference spectra for the analysis of 10Be signals of SEP events in ice cores: black – GLE on 23 February 1956, red – GLE on 4 August 1972.

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