Momjian, Emmanuel; Romney, Jonathan D.; Carilli, Christopher L.; Troland, Thomas H. (10 November 2003). "Sensitive VLBI Continuum and H I Absorption Observations of NGC 7674: First Scientific Observations with the Combined Array VLBA, VLA, and Arecibo". The Astrophysical Journal. 597 (2): 809–822. arXiv:astro-ph/0307399. Bibcode:2003ApJ...597..809M. doi:10.1086/378562. S2CID16030538.
Momjian, Emmanuel; Romney, Jonathan D.; Carilli, Christopher L.; Troland, Thomas H. (10 November 2003). "Sensitive VLBI Continuum and H I Absorption Observations of NGC 7674: First Scientific Observations with the Combined Array VLBA, VLA, and Arecibo". The Astrophysical Journal. 597 (2): 809–822. arXiv:astro-ph/0307399. Bibcode:2003ApJ...597..809M. doi:10.1086/378562. S2CID16030538.
Momjian, Emmanuel; Romney, Jonathan D.; Carilli, Christopher L.; Troland, Thomas H. (10 November 2003). "Sensitive VLBI Continuum and H I Absorption Observations of NGC 7674: First Scientific Observations with the Combined Array VLBA, VLA, and Arecibo". The Astrophysical Journal. 597 (2): 809–822. arXiv:astro-ph/0307399. Bibcode:2003ApJ...597..809M. doi:10.1086/378562. S2CID16030538.
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cbat.eps.harvard.edu
List of SupernovaeIAU Central Bureau for Astronomical Telegrams. Retrieved 29 December 2015.
Momjian, Emmanuel; Romney, Jonathan D.; Carilli, Christopher L.; Troland, Thomas H. (10 November 2003). "Sensitive VLBI Continuum and H I Absorption Observations of NGC 7674: First Scientific Observations with the Combined Array VLBA, VLA, and Arecibo". The Astrophysical Journal. 597 (2): 809–822. arXiv:astro-ph/0307399. Bibcode:2003ApJ...597..809M. doi:10.1086/378562. S2CID16030538.