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- [22] WIDTH OF HALPHA AS DISCRIMINANT OF LUMINOSITY IN SPECTRA OF LATE-TYPE STARS ASTROPHYSICAL JOURNAL, 1964, 140 (01): : 235 - &
- [23] WIDTH OF HALPHA AS DISCRIMINANT OF LUMINOSITY IN SPECTRA OF LATE-TYPE STARS ASTRONOMICAL JOURNAL, 1964, 69 (08): : 549 - +