D. B. Sanders, J. M. Mazzarella, D. -C. Kim, J. A. Surace et B. T. Soifer, «The IRAS Revised Bright Galaxy Sample», The Astronomical Journal, vol.126, no4, , p.1607-1664 (DOI10.1086/376841, Bibcode2003AJ....126.1607S, lire en ligne[PDF])
(en) K. Itagaki, T. Noguchi, S. Nakano et L. Elenin, «Supernova 2013bu in NGC 7331 = Psn J22370217+3424052», Central Bureau Electronic Telegrams, vol.3498, , p.1 (lire en ligne, consulté le )
(en) M. Kim, W. Zheng, W. Li et A. V. Filippenko, «Supernova 2014C in NGC 7331 = Psn J22370560+3424319», Central Bureau Electronic Telegrams, vol.3777, , p.1 (lire en ligne, consulté le )
(en) Felipe Vargas, Fabio De Colle, Daniel Brethauer et Raffaella Margutti, «Survival of the Fittest: Numerical Modeling of SN 2014C», The Astrophysical Journal, vol.930, , p.150 (ISSN0004-637X, DOI10.3847/1538-4357/ac649d, lire en ligne, consulté le )
A.M. Garcia, «General study of group membership. II - Determination of nearby groups», Astronomy and Astrophysics Supplement Series, vol.100 #1, , p.47-90 (Bibcode1993A&AS.100..47G)
(en) J. Materne et G. A. Tammann, «The NGC 7331 Group, a Stable Group of Galaxies Projected on Stephan's Quartet», Astronomy and Astrophysics, vol.35, , p.441 (ISSN0004-6361, lire en ligne, consulté le )
Shaun M. G. Hughes, Mingshengn Han et John Hoessel, «The Hubble Space Telescope Extragalactic Distance Scale Key Project. X. The Cepheid Distance to NGC 7331», The Astrophysical Journal, vol.501, no1, , p.45 pages (DOI10.1086/305808, lire en ligne[PDF])
D. B. Sanders, J. M. Mazzarella, D. -C. Kim, J. A. Surace et B. T. Soifer, «The IRAS Revised Bright Galaxy Sample», The Astronomical Journal, vol.126, no4, , p.1607-1664 (DOI10.1086/376841, Bibcode2003AJ....126.1607S, lire en ligne[PDF])
(en) William Cerny, Alexis Chapman, Rowen Glusman et Richard G. Kron, «Precise Photometric Measurements from a 1903 Photographic Plate Using a Commercial Scanner», Publications of the Astronomical Society of the Pacific, vol.133, no1022, , p.044501 (ISSN0004-6280 et 1538-3873, DOI10.1088/1538-3873/abec20, lire en ligne, consulté le )
Shaun M. G. Hughes, Mingshengn Han et John Hoessel, «The Hubble Space Telescope Extragalactic Distance Scale Key Project. X. The Cepheid Distance to NGC 7331», The Astrophysical Journal, vol.501, no1, , p.45 pages (DOI10.1086/305808, lire en ligne[PDF])
D. B. Sanders, J. M. Mazzarella, D. -C. Kim, J. A. Surace et B. T. Soifer, «The IRAS Revised Bright Galaxy Sample», The Astronomical Journal, vol.126, no4, , p.1607-1664 (DOI10.1086/376841, Bibcode2003AJ....126.1607S, lire en ligne[PDF])
A. Beifiori, M. Sarzi, E.M. Corsini, E. Dalla Bontà, A. Pizzella, L. Coccato et F. Bertola, «UPPER LIMITS ON THE MASSES OF 105 SUPERMASSIVE BLACK HOLES FROM HUBBLE SPACE TELESCOPE/SPACE TELESCOPE IMAGING SPECTROGRAPH ARCHIVAL DATA», The Astrophysical Journal, vol.692, no1, , p.856-868 (DOI10.1088/0004-637X/692/1/856, lire en ligne[PDF])
(en) William Cerny, Alexis Chapman, Rowen Glusman et Richard G. Kron, «Precise Photometric Measurements from a 1903 Photographic Plate Using a Commercial Scanner», Publications of the Astronomical Society of the Pacific, vol.133, no1022, , p.044501 (ISSN0004-6280 et 1538-3873, DOI10.1088/1538-3873/abec20, lire en ligne, consulté le )
(en) Felipe Vargas, Fabio De Colle, Daniel Brethauer et Raffaella Margutti, «Survival of the Fittest: Numerical Modeling of SN 2014C», The Astrophysical Journal, vol.930, , p.150 (ISSN0004-637X, DOI10.3847/1538-4357/ac649d, lire en ligne, consulté le )
A. Beifiori, M. Sarzi, E.M. Corsini, E. Dalla Bontà, A. Pizzella, L. Coccato et F. Bertola, «UPPER LIMITS ON THE MASSES OF 105 SUPERMASSIVE BLACK HOLES FROM HUBBLE SPACE TELESCOPE/SPACE TELESCOPE IMAGING SPECTROGRAPH ARCHIVAL DATA», The Astrophysical Journal, vol.692, no1, , p.856-868 (DOI10.1088/0004-637X/692/1/856, lire en ligne[PDF])
(en) William Cerny, Alexis Chapman, Rowen Glusman et Richard G. Kron, «Precise Photometric Measurements from a 1903 Photographic Plate Using a Commercial Scanner», Publications of the Astronomical Society of the Pacific, vol.133, no1022, , p.044501 (ISSN0004-6280 et 1538-3873, DOI10.1088/1538-3873/abec20, lire en ligne, consulté le )
(en) Felipe Vargas, Fabio De Colle, Daniel Brethauer et Raffaella Margutti, «Survival of the Fittest: Numerical Modeling of SN 2014C», The Astrophysical Journal, vol.930, , p.150 (ISSN0004-637X, DOI10.3847/1538-4357/ac649d, lire en ligne, consulté le )
(en) J. Materne et G. A. Tammann, «The NGC 7331 Group, a Stable Group of Galaxies Projected on Stephan's Quartet», Astronomy and Astrophysics, vol.35, , p.441 (ISSN0004-6361, lire en ligne, consulté le )