H. Baumgardt, M. Hilker, A Sollima et A Bellini, « Mean proper motions, space orbits, and velocity dispersion profiles of Galactic globular clusters derived from Gaia DR2 data », Monthly Notices of the Royal Astronomical Societ, vol. 482, no 4, , p. 5138-5155 (DOI10.1093/mnras/sty2997, lire en ligne [PDF])
Dante Minniti, José G. Fernández-Trincado, Matías Gómez, Leigh C. Smith, Philip W. Lucas et Rodrigo Contreras Ramos, « Discovery of a new nearby globular cluster with extreme kinematics located in the extension of a halo stream », Astronomy & Astrophysics, vol. 650, no L11, , p. 6 pages (DOI10.1051/0004-6361/202141129, Bibcode2021A&A...650L..11M, lire en ligne [PDF])
David J. Nice, Ingrid H. Stairs et Zaven Arzoumanian, « GBT Observations of Very Low Mass Binary Millisecond Pulsars: A Search for Eclipses », Binary Radio Pulsars, ASP Conference Series, vol. 328, , p. 419 (Bibcode2005ASPC..328..419N, lire en ligne [PDF])
H. Baumgardt, M. Hilker, A Sollima et A Bellini, « Mean proper motions, space orbits, and velocity dispersion profiles of Galactic globular clusters derived from Gaia DR2 data », Monthly Notices of the Royal Astronomical Societ, vol. 482, no 4, , p. 5138-5155 (DOI10.1093/mnras/sty2997, lire en ligne [PDF])
J. Boyles, D. R. Lorimer, P. J. Turk, R. Mnatsakanov, S. Lynch, S. M. Ransom, P. C. Freire et K. Belczynski, « YOUNG RADIO PULSARS IN GALACTIC GLOBULAR CLUSTERS », The Astrophysical Journal, vol. 742#1, , p. 12 pages (DOI10.1088/0004-637X/742/1/51, Bibcode2011ApJ...742...51B, lire en ligne)
J. F. C. Santos Jr. et A. E. Piatti, « Ages and metallicities of star clusters: New calibrations and diagnostic diagrams from visible integrated spectra », Astronomy and Astrophysics, vol. 428, no 1, , p. 79-88 (DOI10.1051/0004-6361:20041560, file:///C:/Users/Donald/OneDrive/AstronomieA/Desktop/PDF%20NGC/Amas_glob%20NGC/Age_MetalGlobClus.pdf [PDF])
Dante Minniti, José G. Fernández-Trincado, Matías Gómez, Leigh C. Smith, Philip W. Lucas et Rodrigo Contreras Ramos, « Discovery of a new nearby globular cluster with extreme kinematics located in the extension of a halo stream », Astronomy & Astrophysics, vol. 650, no L11, , p. 6 pages (DOI10.1051/0004-6361/202141129, Bibcode2021A&A...650L..11M, lire en ligne [PDF])
J. Boyles, D. R. Lorimer, P. J. Turk, R. Mnatsakanov, S. Lynch, S. M. Ransom, P. C. Freire et K. Belczynski, « YOUNG RADIO PULSARS IN GALACTIC GLOBULAR CLUSTERS », The Astrophysical Journal, vol. 742#1, , p. 12 pages (DOI10.1088/0004-637X/742/1/51, Bibcode2011ApJ...742...51B, lire en ligne)
Dante Minniti, José G. Fernández-Trincado, Matías Gómez, Leigh C. Smith, Philip W. Lucas et Rodrigo Contreras Ramos, « Discovery of a new nearby globular cluster with extreme kinematics located in the extension of a halo stream », Astronomy & Astrophysics, vol. 650, no L11, , p. 6 pages (DOI10.1051/0004-6361/202141129, Bibcode2021A&A...650L..11M, lire en ligne [PDF])
David J. Nice, Ingrid H. Stairs et Zaven Arzoumanian, « GBT Observations of Very Low Mass Binary Millisecond Pulsars: A Search for Eclipses », Binary Radio Pulsars, ASP Conference Series, vol. 328, , p. 419 (Bibcode2005ASPC..328..419N, lire en ligne [PDF])
J. Boyles, D. R. Lorimer, P. J. Turk, R. Mnatsakanov, S. Lynch, S. M. Ransom, P. C. Freire et K. Belczynski, « YOUNG RADIO PULSARS IN GALACTIC GLOBULAR CLUSTERS », The Astrophysical Journal, vol. 742#1, , p. 12 pages (DOI10.1088/0004-637X/742/1/51, Bibcode2011ApJ...742...51B, lire en ligne)