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- [2] DEEP CCD PHOTOMETRY IN GLOBULAR-CLUSTERS .3. M15 ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1985, 58 (02): : 225 - &
- [3] FAINT CCD PHOTOMETRY IN GLOBULAR-CLUSTERS .2. COMPARISON OF THEORETICAL ISOCHRONES WITH THE GLOBULAR-CLUSTERS M4 AND M15 IAU SYMPOSIA, 1984, (105): : 147 - 151
- [5] THE OOSTERHOFF PERIOD GROUPS AND THE AGE OF GLOBULAR-CLUSTERS .4. FIELD RR LYRAE STARS - AGE OF THE GALACTIC DISK ASTROPHYSICAL JOURNAL, 1982, 252 (02): : 574 - 581
- [8] DEEP PHOTOMETRY OF GLOBULAR-CLUSTERS .1. THE OUTER HALO CLUSTER AM-1 ASTRONOMY & ASTROPHYSICS, 1984, 137 (02): : 269 - 275
- [10] INTEGRATED BVR PHOTOMETRY OF HALO GLOBULAR-CLUSTERS IN M31 .1. ASTRONOMICAL JOURNAL, 1992, 103 (03): : 824 - 839