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- [34] uvby - β PHOTOELECTRIC PHOTOMETRY OF THE OPEN CLUSTERS NGC 1647 AND NGC 1778 XIII LATIN AMERICAN REGIONAL IAU MEETING, 2011, 40 : 276 - 276
- [35] PHOTOMETRY OF THE OPEN CLUSTERS NGC-3960 AND NGC-5823 ASTRONOMICAL JOURNAL, 1981, 86 (08): : 1210 - 1219
- [38] Photometry in the open clusters IC 2602 and NGC 6475 ASTRONOMICAL JOURNAL, 1996, 112 (02): : 649 - 654
- [39] FAINT STELLAR PHOTOMETRY IN CLUSTERS .2. NGC-6791 AND NGC-6535 ASTROPHYSICAL JOURNAL, 1985, 291 (02): : 595 - 610