Moles, M.; Marquez, I.; Sulentic, J. W. (1998). “The observational status of Stephan's Quintet”. Astronomy and Astrophysics,334: 473-481. arXiv:astro-ph/9802328. Bibcode: 1998A&A...334..473M.
Moles, M.; Marquez, I.; Sulentic, J. W. (1998). “The observational status of Stephan's Quintet”. Astronomy and Astrophysics,334: 473-481. arXiv:astro-ph/9802328. Bibcode: 1998A&A...334..473M.