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Created page with "Variation of the solar activity between two extremes with a cycle time of approximately 11 years. The solar activity can be described by the number of observed sunspots. (IC..."
Variation of the solar activity between two extremes with a cycle time of approximately 11 years. The solar activity can be described by the number of observed sunspots. ([[ICRP Publication 123]], 2013)
''[[ICRP Glossary]] entry - May 2019''
''[[ICRP Glossary]] entry - May 2019''