Tài liệu tham khảo WikiPedia: NGC_278 http://nedwww.ipac.caltech.edu/cgi-bin/nDistance?n... http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsear... http://adsabs.harvard.edu/abs/2004A&A...423..481K http://adsabs.harvard.edu/cgi-bin/bib_query?2003A%... http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bi... //arxiv.org/abs/astro-ph/0405107 //arxiv.org/abs/astro-ph/9704107 //doi.org/10.1051%2F0004-6361:20021784 //doi.org/10.1051%2F0004-6361:20034336 //doi.org/10.1086%2F313041
