Skrutskie, M. F.; Cutri, R. M.; Stiening, R.; Weinberg, M. D.; Schneider, S.; Carpenter, J. M.; Beichman, C.; Capps, R.; et al. (February 2006), ”The Two Micron All Sky Survey (2MASS)”, The Astronomical Journal 131 (2): 1163–1183, doi:10.1086/498708, Bibcode: 2006AJ....131.1163S.
R. J. Rand; J. F. Wallin (2004). ”Pattern Speeds BIMA-SONG Galaxies with Molecule-Dominated ISMs Using the Tremaine-Weinberg Method”. The Astrophysical Journal 614 (1): sid. 142–157. doi:10.1086/423423. Bibcode: 2004ApJ...614..142R.
de Vaucouleurs, Gérard (April 1963), ”Revised Classification of 1500 Bright Galaxies”, Astrophysical Journal Supplement 8: 31, doi:10.1086/190084, Bibcode: 1963ApJS....8...31D.
Ann, H. B.; Seo, Mira; Ha, D. K. (2015), ”A Catalog of Visually Classified Galaxies in the Local (z ∼ 0.01) Universe”, The Astrophysical Journal Supplement Series 217 (2): 27–49, doi:10.1088/0067-0049/217/2/27, Bibcode: 2015ApJS..217...27A.
Thronson, Harley A., Jr.; Hereld, Mark; Majewski, Steven; Greenhouse, Matthew; Johnson, Paul; Spillar, Earl; Woodward, C. E.; Harper, D. A.; et al. (1 August 1989), ”Near-infrared image of NGC 1068 - Bar-driven star formation and the circumnuclear composition”, Astrophysical Journal, Part 1 343: 158–168, doi:10.1086/167693, Bibcode: 1989ApJ...343..158T.
Alexander, Tal; Lutz, Dieter; Sturm, Eckhard; Genzel, Reinhard; Sternberg, Amiel; Netzer, Hagai (June 2000), ”Infrared Spectroscopy of NGC 1068: Probing the Obscured Ionizing AGN Continuum”, The Astrophysical Journal 536 (2): 710–717, doi:10.1086/308973, Bibcode: 2000ApJ...536..710A.
Skrutskie, M. F.; Cutri, R. M.; Stiening, R.; Weinberg, M. D.; Schneider, S.; Carpenter, J. M.; Beichman, C.; Capps, R.; et al. (February 2006), ”The Two Micron All Sky Survey (2MASS)”, The Astronomical Journal 131 (2): 1163–1183, doi:10.1086/498708, Bibcode: 2006AJ....131.1163S.
R. J. Rand; J. F. Wallin (2004). ”Pattern Speeds BIMA-SONG Galaxies with Molecule-Dominated ISMs Using the Tremaine-Weinberg Method”. The Astrophysical Journal 614 (1): sid. 142–157. doi:10.1086/423423. Bibcode: 2004ApJ...614..142R.
de Vaucouleurs, Gérard (April 1963), ”Revised Classification of 1500 Bright Galaxies”, Astrophysical Journal Supplement 8: 31, doi:10.1086/190084, Bibcode: 1963ApJS....8...31D.
Ann, H. B.; Seo, Mira; Ha, D. K. (2015), ”A Catalog of Visually Classified Galaxies in the Local (z ∼ 0.01) Universe”, The Astrophysical Journal Supplement Series 217 (2): 27–49, doi:10.1088/0067-0049/217/2/27, Bibcode: 2015ApJS..217...27A.
Thronson, Harley A., Jr.; Hereld, Mark; Majewski, Steven; Greenhouse, Matthew; Johnson, Paul; Spillar, Earl; Woodward, C. E.; Harper, D. A.; et al. (1 August 1989), ”Near-infrared image of NGC 1068 - Bar-driven star formation and the circumnuclear composition”, Astrophysical Journal, Part 1 343: 158–168, doi:10.1086/167693, Bibcode: 1989ApJ...343..158T.
Alexander, Tal; Lutz, Dieter; Sturm, Eckhard; Genzel, Reinhard; Sternberg, Amiel; Netzer, Hagai (June 2000), ”Infrared Spectroscopy of NGC 1068: Probing the Obscured Ionizing AGN Continuum”, The Astrophysical Journal 536 (2): 710–717, doi:10.1086/308973, Bibcode: 2000ApJ...536..710A.