Abundances of lithium, oxygen, and sodium in the turn-off stars of Galactic globular cluster 47 TucanaeV. Dobrovolskas, A. Kučinskas, P. Bonifacio, S. A. Korotin, M. Steffen, L. Sbordone, E. Caffau, H.-G. Ludwig, F. Royer and D. PrakapavičiusA&A, 565 (2014) A121DOI: https://doi.org/10.1051/0004-6361/201322868