Long-term changes in the cosmic ray intensity at Earth, 1428-2005

McCracken KG & Beer J
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McCracken, K. G., & Beer, J. (2007). Long-term changes in the cosmic ray intensity at Earth, 1428-2005. Journal of Geophysical Research A: Space Physics, 112(A10), 1-15. https://doi.org/10.1029/2006JA012117