The ACS survey of galactic globular clusters: M54 and young populations in the sagittarius dwarf spheroidal galaxy

1. Siegel, M.H.
2. Dotter, A.
3. Majewski, S.R.
4. Sarajedini, A.
5. Chaboyer, B.
6. Nidever, D.L.
7. Anderson, J.
8. Marín-Franch, A.
9. Rosenberg, A.
10. Bedin, L.R.
11. Aparicio, A.
12. King, I.
13. Piotto, G.
14. Reid, I.N.