Energy · 1999 · 108 citations · 22 references
Natural SciencesEarth SciencesSurface EngineeringSolar IrradianceSolar RadiationSurface Radiation BudgetDiffuse Horizontal IrradianceGlobal Horizontal IrradianceInclined PlanesIrradianceIrradiance DependenceSolar Incidence AngleSurface Radiation Observations
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Douglas T. Reindl, William A. Beckman, John A. Duffie · Solar Energy · 1990 · 794 citations
Calculation of monthly average insolation on tilted surfaces
S.A. Klein · Solar Energy · 1977 · 759 citations