208 citations · 262 across the 3 of their papers we have counts for
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astro-ph.SR2015★ 44 cited
Tests of sunspot number sequences: 3. Effects of regression procedures on the calibration of historic sunspot data
M. Lockwood, M. J Owens, L. Barnard +1
We use sunspot group observations from the Royal Greenwich Observatory (RGO) to investigate the effects of intercalibrating data from observers with different visual acuities. The…
astro-ph.SR2015★ 208 cited
The Maunder minimum (1645--1715) was indeed a Grand minimum: A reassessment of multiple datasets
Ilya G. Usoskin, Rainer Arlt, Eleanna Asvestari +13
Aims: Although the time of the Maunder minimum (1645--1715) is widely known as a period of extremely low solar activity, claims are still debated that solar activity during that pe…