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- [35] Observations of the Ultraviolet-bright Star Barnard 29 in the Globular Cluster M13 (NGC 6205) ASTRONOMICAL JOURNAL, 2019, 157 (04):
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- [37] ASTROMETRY IN THE GLOBULAR-CLUSTER M13 .1. NEW PROPER MOTIONS AND MEMBERSHIP PROBABILITIES ASTRONOMICAL JOURNAL, 1979, 84 (06): : 774 - 782
- [38] A triple main sequence in the globular cluster NGC 2808 ASTROPHYSICAL JOURNAL, 2007, 661 (01): : L53 - L56
- [40] PHOTOMETRY OF VARIABLES IN GLOBULAR CLUSTERS .2. M13 ASTRONOMICAL JOURNAL, 1971, 76 (05): : 445 - &