G. J. Bendo; D. A. Dale; B. T. Draine; C. W. Engelbracht; R. C. Kennicutt, Jr.; D. Calzetti; K. D. Gordon; G. Helou; D. Hollenbach; A. Li; E. J. Murphy; M. K. M. Prescott; J.-D. T. Smith (2006). "The Spectral Energy Distribution of Dust Emission in the Edge-on Spiral Galaxy NGC 4631 as Seen with Spitzer and the James Clerk Maxwell Telescope". Astrophysical Journal. 652 (1): 283-305. arXiv:astro-ph/0607669 $2. Bibcode:2006ApJ...652..283B. doi:10.1086/508057.
Q. D. Wang; S. Immler; R. Walterbos; J. T. Lauroesch; D. Breitschwerdt (2001). "Chandra Detection of a Hot Gaseous Corona around the Edge-on Galaxy NGC 4631". Astrophysical Journal. 555 (2): L99-L102. arXiv:astro-ph/0105541 $2. Bibcode:2001ApJ...555L..99W. doi:10.1086/323179.
R. J. Rand; S. R. Kulkarni; J. J. Hester (1992). "Warm ionized gas in the edge-on galaxies NGC 4565 and NGC 4631". Astrophysical Journal. 396: 97-103. Bibcode:1992ApJ...396...97R. doi:10.1086/171699.
G. J. Bendo; D. A. Dale; B. T. Draine; C. W. Engelbracht; R. C. Kennicutt, Jr.; D. Calzetti; K. D. Gordon; G. Helou; D. Hollenbach; A. Li; E. J. Murphy; M. K. M. Prescott; J.-D. T. Smith (2006). "The Spectral Energy Distribution of Dust Emission in the Edge-on Spiral Galaxy NGC 4631 as Seen with Spitzer and the James Clerk Maxwell Telescope". Astrophysical Journal. 652 (1): 283-305. arXiv:astro-ph/0607669 $2. Bibcode:2006ApJ...652..283B. doi:10.1086/508057.
Q. D. Wang; R. A. S. Walterbos; M. F. Steakley; C. A. Norman; R. Braun (1994). "ROSAT detection of diffuse hot gas in the edge-on galaxy NGC 4631". Astrophysical Journal. 439: 176-184. Bibcode:1995ApJ...439..176W. doi:10.1086/175162. hdl:2060/19950011081.
Q. D. Wang; S. Immler; R. Walterbos; J. T. Lauroesch; D. Breitschwerdt (2001). "Chandra Detection of a Hot Gaseous Corona around the Edge-on Galaxy NGC 4631". Astrophysical Journal. 555 (2): L99-L102. arXiv:astro-ph/0105541 $2. Bibcode:2001ApJ...555L..99W. doi:10.1086/323179.
Q. D. Wang; R. A. S. Walterbos; M. F. Steakley; C. A. Norman; R. Braun (1994). "ROSAT detection of diffuse hot gas in the edge-on galaxy NGC 4631". Astrophysical Journal. 439: 176-184. Bibcode:1995ApJ...439..176W. doi:10.1086/175162. hdl:2060/19950011081.
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R. J. Rand; S. R. Kulkarni; J. J. Hester (1992). "Warm ionized gas in the edge-on galaxies NGC 4565 and NGC 4631". Astrophysical Journal. 396: 97-103. Bibcode:1992ApJ...396...97R. doi:10.1086/171699.
G. J. Bendo; D. A. Dale; B. T. Draine; C. W. Engelbracht; R. C. Kennicutt, Jr.; D. Calzetti; K. D. Gordon; G. Helou; D. Hollenbach; A. Li; E. J. Murphy; M. K. M. Prescott; J.-D. T. Smith (2006). "The Spectral Energy Distribution of Dust Emission in the Edge-on Spiral Galaxy NGC 4631 as Seen with Spitzer and the James Clerk Maxwell Telescope". Astrophysical Journal. 652 (1): 283-305. arXiv:astro-ph/0607669 $2. Bibcode:2006ApJ...652..283B. doi:10.1086/508057.
Q. D. Wang; R. A. S. Walterbos; M. F. Steakley; C. A. Norman; R. Braun (1994). "ROSAT detection of diffuse hot gas in the edge-on galaxy NGC 4631". Astrophysical Journal. 439: 176-184. Bibcode:1995ApJ...439..176W. doi:10.1086/175162. hdl:2060/19950011081.
Q. D. Wang; S. Immler; R. Walterbos; J. T. Lauroesch; D. Breitschwerdt (2001). "Chandra Detection of a Hot Gaseous Corona around the Edge-on Galaxy NGC 4631". Astrophysical Journal. 555 (2): L99-L102. arXiv:astro-ph/0105541 $2. Bibcode:2001ApJ...555L..99W. doi:10.1086/323179.
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