Solar Physics · 1984 · 15 citations · 1 references
Natural SciencesAstronomyAtmospheric ScienceClimatologyHot Spot AnalysisSolar Active RegionsSolar RadiationSunspot Area EvolutionSunspot FormationSunspot NumberSunspot PenumbraeSunspot Structure
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Observations of Solar Irradiance Variability
R. C. Willson, S. Gulkis, M. A. Janssen et al. · Science · 1981 · 404 citations