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van den Bergh, Sidney; Li, Weidong; Filippenko, Alexei V. (2003). „Classifications of the Host Galaxies of Supernovae, Set II“. The Publications of the Astronomical Society of the Pacific. 115 (813): 1280–88. arXiv:astro-ph/0308195. Bibcode:2003PASP..115.1280V. doi:10.1086/379106.
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