(en) S. O. Souza, M. Valentini, B. Barbuy, A. Pérez-Villegas, C. Chiappini, S. Ortolani, D. Nardiello, B. Dias, F. Anders et E. Bica, « Photo-chemo-dynamical analysis and the origin of the bulge globular cluster Palomar 6 », Astronomy & Astrophysics, vol. 656, , article no A78 (DOI10.1051/0004-6361/202141768, arXiv2109.04483, S2CID237485386)
(en) S. O. Souza, M. Valentini, B. Barbuy, A. Pérez-Villegas, C. Chiappini, S. Ortolani, D. Nardiello, B. Dias, F. Anders et E. Bica, « Photo-chemo-dynamical analysis and the origin of the bulge globular cluster Palomar 6 », Astronomy & Astrophysics, vol. 656, , article no A78 (DOI10.1051/0004-6361/202141768, arXiv2109.04483, S2CID237485386)
(en) George O. Abell, « Globular Clusters and Planetary Nebulae Discovered on the National Geographic Society-Palomar Observatory Sky Survey », Publications of the Astronomical Society of the Pacific, vol. 67, no 397, , p. 258 (DOI10.1086/126815, Bibcode1955PASP...67..258A)
(en) George O. Abell, « Globular Clusters and Planetary Nebulae Discovered on the National Geographic Society-Palomar Observatory Sky Survey », Publications of the Astronomical Society of the Pacific, vol. 67, no 397, , p. 258 (DOI10.1086/126815, Bibcode1955PASP...67..258A)
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(en) S. O. Souza, M. Valentini, B. Barbuy, A. Pérez-Villegas, C. Chiappini, S. Ortolani, D. Nardiello, B. Dias, F. Anders et E. Bica, « Photo-chemo-dynamical analysis and the origin of the bulge globular cluster Palomar 6 », Astronomy & Astrophysics, vol. 656, , article no A78 (DOI10.1051/0004-6361/202141768, arXiv2109.04483, S2CID237485386)