Bensby & Feltzing, "The Galactic thin and thick discs in the context of galaxy formation", [2] (页面存档备份,存于互联网档案馆)
Kordopatis et al., "A spectroscopic survey of thick disc stars outside the solar neighbourhood", [3] (页面存档备份,存于互联网档案馆)
Matthias Steinmetz, The Galactic thin and thick disk (2012), p. 4 (页面存档备份,存于互联网档案馆)"
Ken Freeman, Structure and Evolution of the Milky Way (2012), p. 4 (页面存档备份,存于互联网档案馆)"
Bensby et. al. The Galactic thin and thick discs in the context of galaxy formation. Proceedings of the International Astronomical Union. August 2009, 5 (Symposium S265): 300–303. arXiv:0908.3807v1. doi:10.1017/S1743921310000773.
Ken Freeman, Structure and Evolution of the Milky Way (2012), p. 4 (页面存档备份,存于互联网档案馆): "Thick disks are very common in disk galaxies."
doi.org
Bensby et. al. The Galactic thin and thick discs in the context of galaxy formation. Proceedings of the International Astronomical Union. August 2009, 5 (Symposium S265): 300–303. arXiv:0908.3807v1. doi:10.1017/S1743921310000773.