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Santos, N. C.; et al. (2006-11). “Chemical abundances for the transiting planet host stars OGLE-TR-10, 56, 111, 113, 132, and TrES-1. Abundances in different galactic populations”. Astronomy and Astrophysics458 (3): 997-1005. Bibcode: 2006A&A...458..997S. doi:10.1051/0004-6361:20065683.