References analysis of the Wikipedia article "Messier 63" in the English version

adsabs.harvard.edu (Global: 14^th place; English: 9^th place)

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Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051.

Tully, R. Brent; et al. (August 2016), "Cosmicflows-3", The Astronomical Journal, 152 (2): 21, arXiv:1605.01765, Bibcode:2016AJ....152...50T, doi:10.3847/0004-6256/152/2/50, S2CID 250737862, 50.

Ann, H. B.; et al. (2015), "A Catalog of Visually Classified Galaxies in the Local (z ~ 0.01) Universe", The Astrophysical Journal Supplement Series, 217 (2): 27–49, arXiv:1502.03545, Bibcode:2015ApJS..217...27A, doi:10.1088/0067-0049/217/2/27, S2CID 119253507.

Thornley, Michele D. (September 1996), "Uncovering Spiral Structure in Flocculent Galaxies", Astrophysical Journal Letters, 469: L45, arXiv:astro-ph/9607041, Bibcode:1996ApJ...469L..45T, doi:10.1086/310250, S2CID 9003459.

Masegosa, J.; et al. (March 2011), "The nature of nuclear Hα emission in LINERs", Astronomy & Astrophysics, 527: 28, arXiv:1011.0865, Bibcode:2011A&A...527A..23M, doi:10.1051/0004-6361/201015047, S2CID 116978210, A23.

Graham, Alister W. (November 2008), "Populating the Galaxy Velocity Dispersion - Supermassive Black Hole Mass Diagram: A Catalogue of (Mbh, σ) Values", Publications of the Astronomical Society of Australia, 25 (4): 167–175, arXiv:0807.2549, Bibcode:2008PASA...25..167G, doi:10.1071/AS08013, S2CID 89905.

Battaglia, G.; et al. (February 2006), "ion{H}{i} study of the warped spiral galaxy NGC 5055: a disk/dark matter halo offset?", Astronomy and Astrophysics, 447 (1): 49–62, arXiv:astro-ph/0509382, Bibcode:2006A&A...447...49B, doi:10.1051/0004-6361:20053210, S2CID 119353199.

McQuinn, Kristen. B. W.; et al. (August 2017), "Accurate Distances to Important Spiral Galaxies: M63, M74, NGC 1291, NGC 4559, NGC 4625, and NGC 5398", The Astronomical Journal, 154 (2): 13, arXiv:1706.06586, Bibcode:2017AJ....154...51M, doi:10.3847/1538-3881/aa7aad, S2CID 119449804, 51.

Tikhonov, N. A.; et al. (September 2009), "Stellar content of the interacting galaxies of the M51 system", Astronomy Letters, 35 (9): 599–608, Bibcode:2009AstL...35..599T, doi:10.1134/S1063773709090035, S2CID 123044805.

Deming, Drake; et al. (June 1973), "The Light Curve of Supernova 1971 I", Publications of the Astronomical Society of the Pacific, 85 (505): 321, Bibcode:1973PASP...85..321D, doi:10.1086/129462

Barbon, R.; et al. (1973), "Observations of five supernovae 1970-71", Memorie della Società Astronomia Italiana, 44: 65, Bibcode:1973MmSAI..44...65B.

Bai, Yu; Zou, Hu; Liu, JiFeng; Wang, Song (September 2015). [ttpsh://doi.org/10.1088/0067-0049/220/1/6 "An Updated Ultraviolet Catalog of Galex Nearby Galaxies"]. The Astrophysical Journal Supplement Series. 220 (1): 6. arXiv:1508.07071. Bibcode:2015ApJS..220....6B. doi:10.1088/0067-0049/220/1/6. S2CID 118402184. Retrieved 21 October 2021.

arxiv.org (Global: 49^th place; English: 31^st place)

doi.org (Global: 2^nd place; English: 2^nd place)

Deming, Drake; et al. (June 1973), "The Light Curve of Supernova 1971 I", Publications of the Astronomical Society of the Pacific, 85 (505): 321, Bibcode:1973PASP...85..321D, doi:10.1086/129462

eps.harvard.edu (Global: 3,622^nd place; English: 4,057^th place)

cbat.eps.harvard.edu

Dunlap, J. R.; Jolly, G. (25 May 1971). Marsden, Brian G. (ed.). "SUPERNOVA IN NGC 5055". Central Bureau for Astronomical Telegrams. 2330. Smithsonian Astrophysical Observatory, IAU: 1. Retrieved 2 August 2025.

Mannery, E. J.; Clark, Roger (8 June 1971). Marsden, Brian G. (ed.). "SUPERNOVA IN NGC 5055". Central Bureau for Astronomical Telegrams. Smithsonian Astrophysical Observatory, IAU. p. 1. Retrieved 2 August 2025.

semanticscholar.org (Global: 15^th place; English: 8^th place)

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Messier 63 (English Wikipedia)

adsabs.harvard.edu (Global: 14^th place; English: 9^th place)

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arxiv.org (Global: 49^th place; English: 31^st place)

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books.google.com (Global: 3^rd place; English: 3^rd place)

caltech.edu (Global: 240^th place; English: 473^rd place)

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doi.org (Global: 2^nd place; English: 2^nd place)

eps.harvard.edu (Global: 3,622^nd place; English: 4,057^th place)

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nasa.gov (Global: 12^th place; English: 73^rd place)

semanticscholar.org (Global: 15^th place; English: 8^th place)

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wis-tns.org (Global: low place; English: 9,612^th place)

Messier 63 (English Wikipedia)

adsabs.harvard.edu (Global: 14th place; English: 9th place)

ui.adsabs.harvard.edu

arxiv.org (Global: 49th place; English: 31st place)

astrobin.com (Global: low place; English: low place)

app.astrobin.com

books.google.com (Global: 3rd place; English: 3rd place)

caltech.edu (Global: 240th place; English: 473rd place)

ned.ipac.caltech.edu

spitzer.caltech.edu

doi.org (Global: 2nd place; English: 2nd place)

eps.harvard.edu (Global: 3,622nd place; English: 4,057th place)

cbat.eps.harvard.edu

freestarcharts.com (Global: low place; English: low place)

nasa.gov (Global: 12th place; English: 73rd place)

semanticscholar.org (Global: 15th place; English: 8th place)

api.semanticscholar.org

wis-tns.org (Global: low place; English: 9,612th place)

adsabs.harvard.edu (Global: 14^th place; English: 9^th place)

arxiv.org (Global: 49^th place; English: 31^st place)

books.google.com (Global: 3^rd place; English: 3^rd place)

caltech.edu (Global: 240^th place; English: 473^rd place)

doi.org (Global: 2^nd place; English: 2^nd place)

eps.harvard.edu (Global: 3,622^nd place; English: 4,057^th place)

nasa.gov (Global: 12^th place; English: 73^rd place)

semanticscholar.org (Global: 15^th place; English: 8^th place)

wis-tns.org (Global: low place; English: 9,612^th place)