Messier 15 (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Messier 15" in Portuguese language version.

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Cohen, J. G.; Gillett, F. C. (1989). «The peculiar planetary nebula in M22». Astrophysical Journal. 346: 803–807. Bibcode:1989ApJ...346..803C. doi:10.1086/168061
Forman W, Jones C, Cominsky L, Julien P, Murray S, Peters G (1978). «The fourth Uhuru catalog of X-ray sources». Astrophysical Journal Supplement Series. 38: 357. doi:10.1086/190561
White NE, Angelini L (2001). «The discovery of a second luminous low-mass X-ray binary in the globular cluster M15». Astrophysical Journal Letters. 561: L101–5. Bibcode:2001ApJ...561L.101W. doi:10.1086/324561

Cohen, J. G.; Gillett, F. C. (1989). «The peculiar planetary nebula in M22». Astrophysical Journal. 346: 803–807. Bibcode:1989ApJ...346..803C. doi:10.1086/168061
White NE, Angelini L (2001). «The discovery of a second luminous low-mass X-ray binary in the globular cluster M15». Astrophysical Journal Letters. 561: L101–5. Bibcode:2001ApJ...561L.101W. doi:10.1086/324561

Hartmut Frommert e Christine Kronberg (21 de agosto de 2007). «Messier Object 15» (em inglês). SEDS. Consultado em 27 de maio de 2012

«SIMBAD Astronomical Database». Results for NGC 7078. Consultado em 16 de novembro de 2006