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Moles, M.; Marquez, I.; Sulentic, J. W. (1998). "The observational status of Stephan's Quintet". Astronomi dan Astrofizik. 334: 473–481. arXiv:astro-ph/9802328. Bibcode:1998A&A...334..473M.CS1 maint: multiple names: authors list (link)
Stephan, M. E. (1877). "Nebulæ (new) discovered and observed at the observatory of Marseille, 1876 and 1877, M. Stephan". Notis Bulanan Persatuan Astronomi Diraja. 37: 334–339. Bibcode:1877MNRAS..37..334S.