^Dreyer, J. L. E. (1988). Sinnott, R. W. (ed.). The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters. Sky Publishing Corporation and Cambridge University Press.
ISBN978-0-933346-51-2.
^Conselice, Christopher J.; O'Neil, Karen; Gallagher, John S.; Wyse, Rosemary F. G. (2003-07-01). "Galaxy Populations and Evolution in Clusters. IV. Deep H I Observations of Dwarf Elliptical Galaxies in the Virgo Cluster". The Astrophysical Journal. 591 (1): 167–184.
arXiv:astro-ph/0303185.
Bibcode:
2003ApJ...591..167C.
doi:
10.1086/375216.
ISSN0004-637X.
S2CID18689071.
^Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006).
"The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183.
Bibcode:
2006AJ....131.1163S.
doi:10.1086/498708.
ISSN0004-6256.
S2CID18913331.
^
abcdel Rio, M. S.; Cepa, J. (1998-12-01). "The nature of arms in spiral galaxies. III. Azimuthal profiles". Astronomy and Astrophysics. 340: 1–20.
Bibcode:
1998A&A...340....1D.
ISSN0004-6361.
^Dreyer, J. L. E. (1988). Sinnott, R. W. (ed.). The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters. Sky Publishing Corporation and Cambridge University Press.
ISBN978-0-933346-51-2.
^Conselice, Christopher J.; O'Neil, Karen; Gallagher, John S.; Wyse, Rosemary F. G. (2003-07-01). "Galaxy Populations and Evolution in Clusters. IV. Deep H I Observations of Dwarf Elliptical Galaxies in the Virgo Cluster". The Astrophysical Journal. 591 (1): 167–184.
arXiv:astro-ph/0303185.
Bibcode:
2003ApJ...591..167C.
doi:
10.1086/375216.
ISSN0004-637X.
S2CID18689071.
^Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W.; Chester, Thomas; Elias, Jonathan H.; Huchra, John P.; Liebert, James W.; Lonsdale, Carol J.; Monet, David G.; Price, Stephan; Seitzer, Patrick; Jarrett, Thomas H.; Kirkpatrick, J. Davy; Gizis, John E.; Howard, Elizabeth V.; Evans, Tracey E.; Fowler, John W.; Fullmer, Linda; Hurt, Robert L.; Light, Robert M.; Kopan, Eugene L.; Marsh, Kenneth A.; McCallon, Howard L.; Tam, Robert; Van Dyk, Schuyler D.; Wheelock, Sherry L. (1 February 2006).
"The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183.
Bibcode:
2006AJ....131.1163S.
doi:10.1086/498708.
ISSN0004-6256.
S2CID18913331.
^
abcdel Rio, M. S.; Cepa, J. (1998-12-01). "The nature of arms in spiral galaxies. III. Azimuthal profiles". Astronomy and Astrophysics. 340: 1–20.
Bibcode:
1998A&A...340....1D.
ISSN0004-6361.