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Tian, Yong; Ko, Chung-Ming (October 2016), "Dynamics of elliptical galaxies with planetary nebulae in modified Newtonian dynamics", Monthly Notices of the Royal Astronomical Society, 462 (1): 1092–1100, arXiv:1606.06815, Bibcode:2016MNRAS.462.1092T, doi:10.1093/mnras/stw1697
Eracleous, Michael; et al. (March 2010). "Spectral Energy Distributions of Weak Active Galactic Nuclei Associated with Low-Ionization Nuclear Emission Regions". The Astrophysical Journal Supplement. 187 (1): 135–148. arXiv:1001.2924. Bibcode:2010ApJS..187..135E. doi:10.1088/0067-0049/187/1/135.
Tian, Yong; Ko, Chung-Ming (October 2016), "Dynamics of elliptical galaxies with planetary nebulae in modified Newtonian dynamics", Monthly Notices of the Royal Astronomical Society, 462 (1): 1092–1100, arXiv:1606.06815, Bibcode:2016MNRAS.462.1092T, doi:10.1093/mnras/stw1697
Eracleous, Michael; et al. (March 2010). "Spectral Energy Distributions of Weak Active Galactic Nuclei Associated with Low-Ionization Nuclear Emission Regions". The Astrophysical Journal Supplement. 187 (1): 135–148. arXiv:1001.2924. Bibcode:2010ApJS..187..135E. doi:10.1088/0067-0049/187/1/135.
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