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↑ Mirabel, I. F.; Rodrogues, I. (2003). “The origin of Scorpius X-1”. Astronomy and Astrophysics 398 (3): L25?L28. arXiv:astro-ph/0301580. Bibcode: 2003A&A...398L..25M. doi:10.1051/0004-6361:20021767.
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