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机译:Multiproxy Reconstructions of Integral Energy Spectra for Extreme Solar Particle Events of 7176 BCE, 660 BCE, 775 CE, and 994 CE
Univ Oulu;
Univ Oulu;
Lund UnivBritish Antarctic SurveyRAS;
solar energetic particles; extreme solar particle events; cosmogenic isotopes; solar activity; COSMOGENIC ISOTOPES; BE-10 DATA; AD 774-775; C-14;