Ellison, S. L.; Yan, L.; Hook, I. M.; Pettini, M.; Wall, J. V.; Shaver, P. (2001). "The CORALS survey I: New estimates of the number density and gas content of damped Lyman alpha systems free from dust bias". Astronomy and Astrophysics. 379 (2): 393–406. arXiv:astro-ph/0109205. Bibcode:2001A&A...379..393E. doi:10.1051/0004-6361:20011281.
Ellison, Sara L.; Songaila, Antoinette; Schaye, Joop; Pettini, M. (2000). "The Enrichment History of the Intergalactic Medium-Measuring the C IV/H I Ratio in the Lyα Forest". The Astronomical Journal. 120 (3): 1175–1191. arXiv:astro-ph/0005448. Bibcode:2000AJ....120.1175E. doi:10.1086/301511.
Ellison, Sara L.; Patton, David R.; Simard, Luc; McConnachie, Alan W. (2008). "Galaxy Pairs in the Sloan Digital Sky Survey. I. Star Formation, Active Galactic Nucleus Fraction, and the Mass-Metallicity Relation". The Astronomical Journal. 135 (5): 1877–1899. arXiv:0803.0161. Bibcode:2008AJ....135.1877E. doi:10.1088/0004-6256/135/5/1877.
Ellison, Sara L.; Patton, David R.; Mendel, J. Trevor; Scudder, Jillian M. (2008). "Galaxy pairs in the Sloan Digital Sky Survey – IV. Interactions trigger active galactic nuclei". The Astronomical Journal. 418 (3): 2043–2053. arXiv:1108.2711. Bibcode:2011MNRAS.418.2043E. doi:10.1088/0004-6256/135/5/1877.
Ellison, S. L.; Yan, L.; Hook, I. M.; Pettini, M.; Wall, J. V.; Shaver, P. (2001). "The CORALS survey I: New estimates of the number density and gas content of damped Lyman alpha systems free from dust bias". Astronomy and Astrophysics. 379 (2): 393–406. arXiv:astro-ph/0109205. Bibcode:2001A&A...379..393E. doi:10.1051/0004-6361:20011281.
Ellison, Sara L.; Songaila, Antoinette; Schaye, Joop; Pettini, M. (2000). "The Enrichment History of the Intergalactic Medium-Measuring the C IV/H I Ratio in the Lyα Forest". The Astronomical Journal. 120 (3): 1175–1191. arXiv:astro-ph/0005448. Bibcode:2000AJ....120.1175E. doi:10.1086/301511.
Ellison, Sara L.; Patton, David R.; Simard, Luc; McConnachie, Alan W. (2008). "Galaxy Pairs in the Sloan Digital Sky Survey. I. Star Formation, Active Galactic Nucleus Fraction, and the Mass-Metallicity Relation". The Astronomical Journal. 135 (5): 1877–1899. arXiv:0803.0161. Bibcode:2008AJ....135.1877E. doi:10.1088/0004-6256/135/5/1877.
Ellison, Sara L.; Patton, David R.; Mendel, J. Trevor; Scudder, Jillian M. (2008). "Galaxy pairs in the Sloan Digital Sky Survey – IV. Interactions trigger active galactic nuclei". The Astronomical Journal. 418 (3): 2043–2053. arXiv:1108.2711. Bibcode:2011MNRAS.418.2043E. doi:10.1088/0004-6256/135/5/1877.
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Ellison, S. L.; Yan, L.; Hook, I. M.; Pettini, M.; Wall, J. V.; Shaver, P. (2001). "The CORALS survey I: New estimates of the number density and gas content of damped Lyman alpha systems free from dust bias". Astronomy and Astrophysics. 379 (2): 393–406. arXiv:astro-ph/0109205. Bibcode:2001A&A...379..393E. doi:10.1051/0004-6361:20011281.
Ellison, Sara L.; Songaila, Antoinette; Schaye, Joop; Pettini, M. (2000). "The Enrichment History of the Intergalactic Medium-Measuring the C IV/H I Ratio in the Lyα Forest". The Astronomical Journal. 120 (3): 1175–1191. arXiv:astro-ph/0005448. Bibcode:2000AJ....120.1175E. doi:10.1086/301511.
Ellison, Sara L.; Patton, David R.; Simard, Luc; McConnachie, Alan W. (2008). "Galaxy Pairs in the Sloan Digital Sky Survey. I. Star Formation, Active Galactic Nucleus Fraction, and the Mass-Metallicity Relation". The Astronomical Journal. 135 (5): 1877–1899. arXiv:0803.0161. Bibcode:2008AJ....135.1877E. doi:10.1088/0004-6256/135/5/1877.
Ellison, Sara L.; Patton, David R.; Mendel, J. Trevor; Scudder, Jillian M. (2008). "Galaxy pairs in the Sloan Digital Sky Survey – IV. Interactions trigger active galactic nuclei". The Astronomical Journal. 418 (3): 2043–2053. arXiv:1108.2711. Bibcode:2011MNRAS.418.2043E. doi:10.1088/0004-6256/135/5/1877.