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Sunspot activity and cosmic ray modulation at 1a.u. for 1900–2013
Testing baseline stability of some neutron monitors in Europe, Africa, and Asia
No direct correlation between galactic cosmic rays and earth surface temperature
An empirical approach to predicting the key parameters for a sunspot number cycle
Sunspot cycle 23 descent to an unusual minimum and forecasts for cycle 24 activity
Is there an instrumental drift in the counting rate of some high latitude neutron monitors?
The onset of sunspot cycle 24 and galactic cosmic ray modulation
Galactic cosmic ray modulation for sunspot cycle 23
Two intense Forbush decreases of solar activity cycle 22