Sbordone, L.; Bonifacio, P.; Marconi, G.; Buonanno, R. «Family ties: Abundances in Terzan 7, a Sgr dSph globular cluster». Astronomy and Astrophysics, 437, 3, 03-07-2005, p. 905–910. DOI: 10.1051/0004-6361:20042315.
van den Bergh, Sidney «The Luminosity Distribution of Globular Clusters in Dwarf Galaxies». The Astronomical Journal, 134, 1, 7-2007, p. 344–345. DOI: 10.1086/518868.