Chien, Li-Hsin; Barnes, Joshua E.; Kewley, Lisa J.; Chambers, Kenneth, C. (May 2007). "Multiobject Spectroscopy of Young Star Clusters in NGC 4676". The Astrophysical Journal. 660 (2): L105–L108. arXiv:astro-ph/0703510. डीओआइ:10.1086/518215. बिबकोड:2007ApJ...660L.105C.सीएस1 रखरखाव: एक से अधिक नाम: authors list (link)
Chien, Li-Hsin; Barnes, Joshua E.; Kewley, Lisa J.; Chambers, Kenneth, C. (May 2007). "Multiobject Spectroscopy of Young Star Clusters in NGC 4676". The Astrophysical Journal. 660 (2): L105–L108. arXiv:astro-ph/0703510. डीओआइ:10.1086/518215. बिबकोड:2007ApJ...660L.105C.सीएस1 रखरखाव: एक से अधिक नाम: authors list (link)
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Chien, Li-Hsin; Barnes, Joshua E.; Kewley, Lisa J.; Chambers, Kenneth, C. (May 2007). "Multiobject Spectroscopy of Young Star Clusters in NGC 4676". The Astrophysical Journal. 660 (2): L105–L108. arXiv:astro-ph/0703510. डीओआइ:10.1086/518215. बिबकोड:2007ApJ...660L.105C.सीएस1 रखरखाव: एक से अधिक नाम: authors list (link)