NGC 6535: the lowest mass Milky Way globular cluster with a Na-O anti-correlation? Cluster mass and age in the multiple population context
Journal article published in 2017 by
A. Bragaglia,
E. Carretta,
D'Orazi,
A. Sollima 
,
P. Donati,
R.~G Gratton,
S. Lucatello
,
P. Donati,
R.~G Gratton,
S. Lucatello
