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Carballo-Bello, Julio A. et al. (Febrero de 2018), «Tails and streams around the Galactic globular clusters NGC 1851, NGC 1904, NGC 2298 and NGC 2808», Monthly Notices of the Royal Astronomical Society474 (1): 683-695, Bibcode:2018MNRAS.474..683C, arXiv:1710.08927, doi:10.1093/mnras/stx2767.
Kuzma, P. B. et al. (Enero de 2018), «The outer envelopes of globular clusters. II. NGC 1851, NGC 5824 and NGC 1261*», Monthly Notices of the Royal Astronomical Society473 (3): 2881-2898, Bibcode:2018MNRAS.473.2881K, arXiv:1709.02915, doi:10.1093/mnras/stx2353.
Carballo-Bello, Julio A. et al. (Febrero de 2018), «Tails and streams around the Galactic globular clusters NGC 1851, NGC 1904, NGC 2298 and NGC 2808», Monthly Notices of the Royal Astronomical Society474 (1): 683-695, Bibcode:2018MNRAS.474..683C, arXiv:1710.08927, doi:10.1093/mnras/stx2767.
Kuzma, P. B. et al. (Enero de 2018), «The outer envelopes of globular clusters. II. NGC 1851, NGC 5824 and NGC 1261*», Monthly Notices of the Royal Astronomical Society473 (3): 2881-2898, Bibcode:2018MNRAS.473.2881K, arXiv:1709.02915, doi:10.1093/mnras/stx2353.
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