Proceedings of the National Academy of Sciences · 1928 · 11 citations · 1 references
Natural SciencesAstronomyChemistrySpectroscopic AnalysisSpectroscopyFine StructureSpectral InterpretationSpectral Line AstronomyStellar ClassificationFine-structure Line EmissionLine Emission SpectraLine Profile AnalysisSpectral Line AnalysisSpectral Line AssignmentSpectral Line IdentificationSpectral Line IntensitiesSpectral Line Structure
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