Stanek, K. Z.; Garnavich, P. M.. (1998-08-20). «Distance to M31 with the [ITALHubble Space Telescope[/ITAL] and [ITAL]Hipparcos[/ITAL] Red Clump Stars»] The Astrophysical Journal 503 (2): L131–L134. doi:10.1086/311539. ISSN0004-637X. (Noiz kontsultatua: 2021-05-28).
Kalirai, Jasonjot S.; Gilbert, Karoline M.; Guhathakurta, Puragra; Majewski, Steven R.; Ostheimer, James C.; Rich, R. Michael; Cooper, Michael C.; Reitzel, David B. et al.. (2006-09). «The Metal‐poor Halo of the Andromeda Spiral Galaxy (M31)»The Astrophysical Journal 648 (1): 389–404. doi:10.1086/505697. ISSN0004-637X. (Noiz kontsultatua: 2021-05-28).
Gordon, K. D.; Bailin, J.; Engelbracht, C. W.; Rieke, G. H.; Misselt, K. A.; Latter, W. B.; Young, E. T.; Ashby, M. L. N. et al.. (2006-02-03). [http://dx.doi.org/10.1086/501046 «Sp
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MIPS Infrared Imaging of M31: Further Evidence for a Spiral-Ring Composite Structure»] The Astrophysical Journal 638 (2): L87–L92. doi:10.1086/501046. ISSN0004-637X. (Noiz kontsultatua: 2021-05-28).
Gordon, K. D.; Bailin, J.; Engelbracht, C. W.; Rieke, G. H.; Misselt, K. A.; Latter, W. B.; Young, E. T.; Ashby, M. L. N. et al.. (2006-02-03). [http://dx.doi.org/10.1086/501046 «Sp
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MIPS Infrared Imaging of M31: Further Evidence for a Spiral-Ring Composite Structure»] The Astrophysical Journal 638 (2): L87–L92. doi:10.1086/501046. ISSN0004-637X. (Noiz kontsultatua: 2021-05-28).
Barmby, Pauline; Huchra, John P.. (2001-11). «M31 Globular Clusters in the [ITALHUBBLE SPACE TELESCOPE[/ITAL][ITAL]Hubble Space Telescope[/ITAL] Archive. I. Cluster Detection and Completeness»] The Astronomical Journal 122 (5): 2458–2468. doi:10.1086/323457. ISSN0004-6256. (Noiz kontsultatua: 2021-05-28).
Stanek, K. Z.; Garnavich, P. M.. (1998-08-20). «Distance to M31 with the [ITALHubble Space Telescope[/ITAL] and [ITAL]Hipparcos[/ITAL] Red Clump Stars»] The Astrophysical Journal 503 (2): L131–L134. doi:10.1086/311539. ISSN0004-637X. (Noiz kontsultatua: 2021-05-28).
Kalirai, Jasonjot S.; Gilbert, Karoline M.; Guhathakurta, Puragra; Majewski, Steven R.; Ostheimer, James C.; Rich, R. Michael; Cooper, Michael C.; Reitzel, David B. et al.. (2006-09). «The Metal‐poor Halo of the Andromeda Spiral Galaxy (M31)»The Astrophysical Journal 648 (1): 389–404. doi:10.1086/505697. ISSN0004-637X. (Noiz kontsultatua: 2021-05-28).
Gordon, K. D.; Bailin, J.; Engelbracht, C. W.; Rieke, G. H.; Misselt, K. A.; Latter, W. B.; Young, E. T.; Ashby, M. L. N. et al.. (2006-02-03). [http://dx.doi.org/10.1086/501046 «Sp
i
t
zer
MIPS Infrared Imaging of M31: Further Evidence for a Spiral-Ring Composite Structure»] The Astrophysical Journal 638 (2): L87–L92. doi:10.1086/501046. ISSN0004-637X. (Noiz kontsultatua: 2021-05-28).
Gordon, K. D.; Bailin, J.; Engelbracht, C. W.; Rieke, G. H.; Misselt, K. A.; Latter, W. B.; Young, E. T.; Ashby, M. L. N. et al.. (2006-02-03). [http://dx.doi.org/10.1086/501046 «Sp
i
t
zer
MIPS Infrared Imaging of M31: Further Evidence for a Spiral-Ring Composite Structure»] The Astrophysical Journal 638 (2): L87–L92. doi:10.1086/501046. ISSN0004-637X. (Noiz kontsultatua: 2021-05-28).
Barmby, Pauline; Huchra, John P.. (2001-11). «M31 Globular Clusters in the [ITALHUBBLE SPACE TELESCOPE[/ITAL][ITAL]Hubble Space Telescope[/ITAL] Archive. I. Cluster Detection and Completeness»] The Astronomical Journal 122 (5): 2458–2468. doi:10.1086/323457. ISSN0004-6256. (Noiz kontsultatua: 2021-05-28).