Sodium abundances of AGB and RGB stars in Galactic globular clusters - I. Analysis and results of NGC 2808Y. Wang, F. Primas, C. Charbonnel, M. Van der Swaelmen, G. Bono, W. Chantereau and G. ZhaoA&A, 592 (2016) A66DOI: https://doi.org/10.1051/0004-6361/201628502
