García-Lorenzo, B. et al. (2014). «Ionized gas kinematics of galaxies in the CALIFA survey. I. Velocity fields, kinematic parameters of the dominant component, and presence of kinematically distinct gaseous systems». Astronomy & Astrophysics573: A59. Bibcode:2015A&A...573A..59G. arXiv:1408.5765. doi:10.1051/0004-6361/201423485.
Crook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (2007). «Groups of Galaxies in the Two Micron All Sky Redshift Survey». The Astrophysical Journal655 (2): 790-813. Bibcode:2007ApJ...655..790C. arXiv:astro-ph/0610732. doi:10.1086/510201.
Yoast-Hull, Tova M.; Gallagher, John S.; Aalto, Susanne; Varenius, Eskil (2017). «γ-Ray emission from Arp 220: indications of an active galactic nucleus». Monthly Notices of the Royal Astronomical Society: Letters469: L89. Bibcode:2017MNRAS.469L..89Y. arXiv:1704.03791. doi:10.1093/mnrasl/slx054.
García-Lorenzo, B. et al. (2014). «Ionized gas kinematics of galaxies in the CALIFA survey. I. Velocity fields, kinematic parameters of the dominant component, and presence of kinematically distinct gaseous systems». Astronomy & Astrophysics573: A59. Bibcode:2015A&A...573A..59G. arXiv:1408.5765. doi:10.1051/0004-6361/201423485.
Patnaik, A. R.; Browne, I. W. A.; Wilkinson, P. N.; Wrobel, J. M. (1992). «Interferometer phase calibration sources. I - The region 35-75 deg». Monthly Notices of the Royal Astronomical Society254 (4): 655. Bibcode:1992MNRAS.254..655P. doi:10.1093/mnras/254.4.655.
Crook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (2007). «Groups of Galaxies in the Two Micron All Sky Redshift Survey». The Astrophysical Journal655 (2): 790-813. Bibcode:2007ApJ...655..790C. arXiv:astro-ph/0610732. doi:10.1086/510201.
Yoast-Hull, Tova M.; Gallagher, John S.; Aalto, Susanne; Varenius, Eskil (2017). «γ-Ray emission from Arp 220: indications of an active galactic nucleus». Monthly Notices of the Royal Astronomical Society: Letters469: L89. Bibcode:2017MNRAS.469L..89Y. arXiv:1704.03791. doi:10.1093/mnrasl/slx054.
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García-Lorenzo, B. et al. (2014). «Ionized gas kinematics of galaxies in the CALIFA survey. I. Velocity fields, kinematic parameters of the dominant component, and presence of kinematically distinct gaseous systems». Astronomy & Astrophysics573: A59. Bibcode:2015A&A...573A..59G. arXiv:1408.5765. doi:10.1051/0004-6361/201423485.
Patnaik, A. R.; Browne, I. W. A.; Wilkinson, P. N.; Wrobel, J. M. (1992). «Interferometer phase calibration sources. I - The region 35-75 deg». Monthly Notices of the Royal Astronomical Society254 (4): 655. Bibcode:1992MNRAS.254..655P. doi:10.1093/mnras/254.4.655.
Crook, Aidan C.; Huchra, John P.; Martimbeau, Nathalie; Masters, Karen L.; Jarrett, Tom; Macri, Lucas M. (2007). «Groups of Galaxies in the Two Micron All Sky Redshift Survey». The Astrophysical Journal655 (2): 790-813. Bibcode:2007ApJ...655..790C. arXiv:astro-ph/0610732. doi:10.1086/510201.
Yoast-Hull, Tova M.; Gallagher, John S.; Aalto, Susanne; Varenius, Eskil (2017). «γ-Ray emission from Arp 220: indications of an active galactic nucleus». Monthly Notices of the Royal Astronomical Society: Letters469: L89. Bibcode:2017MNRAS.469L..89Y. arXiv:1704.03791. doi:10.1093/mnrasl/slx054.