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Chilingarian, I. V.; et al. (September 2009). "NGC 6340: an old S0 galaxy with a young polar disc. Clues from morphology, internal kinematics, and stellar populations". Astronomy and Astrophysics. 504 (2): 389–400. arXiv:0904.4606. Bibcode:2009A&A...504..389C. doi:10.1051/0004-6361/200911684.
Chilingarian, I. V.; et al. (September 2009). "NGC 6340: an old S0 galaxy with a young polar disc. Clues from morphology, internal kinematics, and stellar populations". Astronomy and Astrophysics. 504 (2): 389–400. arXiv:0904.4606. Bibcode:2009A&A...504..389C. doi:10.1051/0004-6361/200911684.
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