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The top documents tagged [minimum of solar activity]
PERICLES Preserving space data
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(1) St.Petersburg Branch (Filial) of Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radiowaves Propagation of RAS, St.-Petersburg, Russia,
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O.M. Raspopov (1), V.A. Dergachev (2),
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Belle Tamir, Sharet High School Nitzan Atia, Tchernichovsky High School Netanya, Israel
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