R. Brent Tully, Hélène M. Courtois, Andrew E. Dolphin, J. Richard Fisher, Philippe Héraudeau, Bradley A. Jacobs, Igor D. Karachentsev, Dmitry Makarov, Lidia Makarova, Sofia Mitronova, Luca Rizzi, Edward J. Shaya, Jenny G. Sorce ja Po-Feng Wu, Cosmicflows-2: the data, The Astronomical Journal, New York, osa146, nro.4, , s.86 (ISSN0004-6256 ja 1538-3881, DOI10.1088/0004-6256/146/4/86, arXiv1307.7213). Tieto on haettu Wikidatasta.
Christopher M. Springob, Martha P. Haynes, Riccardo Giovanelli ja Brian R. Kent, A Digital Archive of H I 21 Centimeter Line Spectra of Optically Targeted Galaxies, The Astrophysical Journal Supplement series, osa160, nro.1, , s.149–162 (ISSN0067-0049 ja 1538-4365, DOI10.1086/431550, arXivastro-ph/0505025). Tieto on haettu Wikidatasta.
R. Brent Tully, Hélène M. Courtois, Andrew E. Dolphin, J. Richard Fisher, Philippe Héraudeau, Bradley A. Jacobs, Igor D. Karachentsev, Dmitry Makarov, Lidia Makarova, Sofia Mitronova, Luca Rizzi, Edward J. Shaya, Jenny G. Sorce ja Po-Feng Wu, Cosmicflows-2: the data, The Astronomical Journal, New York, osa146, nro.4, , s.86 (ISSN0004-6256 ja 1538-3881, DOI10.1088/0004-6256/146/4/86, arXiv1307.7213). Tieto on haettu Wikidatasta.
Christopher M. Springob, Martha P. Haynes, Riccardo Giovanelli ja Brian R. Kent, A Digital Archive of H I 21 Centimeter Line Spectra of Optically Targeted Galaxies, The Astrophysical Journal Supplement series, osa160, nro.1, , s.149–162 (ISSN0067-0049 ja 1538-4365, DOI10.1086/431550, arXivastro-ph/0505025). Tieto on haettu Wikidatasta.
Gaia Collaboration, Data Processing and Analysis Consortium (toim.) ja Euroopan avaruusjärjestö (toim.), Gaia Data Release 2, VizieR Online Data Catalog, (DOI10.26093/CDS/VIZIER.1345) (englanniksi) . Tieto on haettu Wikidatasta.
Gaia Collaboration, Data Processing and Analysis Consortium (toim.) ja Euroopan avaruusjärjestö (toim.), Gaia Data Release 2, VizieR Online Data Catalog, (DOI10.26093/CDS/VIZIER.1345) (englanniksi) . Tieto on haettu Wikidatasta.
R. Brent Tully, Hélène M. Courtois, Andrew E. Dolphin, J. Richard Fisher, Philippe Héraudeau, Bradley A. Jacobs, Igor D. Karachentsev, Dmitry Makarov, Lidia Makarova, Sofia Mitronova, Luca Rizzi, Edward J. Shaya, Jenny G. Sorce ja Po-Feng Wu, Cosmicflows-2: the data, The Astronomical Journal, New York, osa146, nro.4, , s.86 (ISSN0004-6256 ja 1538-3881, DOI10.1088/0004-6256/146/4/86, arXiv1307.7213). Tieto on haettu Wikidatasta.
Christopher M. Springob, Martha P. Haynes, Riccardo Giovanelli ja Brian R. Kent, A Digital Archive of H I 21 Centimeter Line Spectra of Optically Targeted Galaxies, The Astrophysical Journal Supplement series, osa160, nro.1, , s.149–162 (ISSN0067-0049 ja 1538-4365, DOI10.1086/431550, arXivastro-ph/0505025). Tieto on haettu Wikidatasta.
Gaia Collaboration, Data Processing and Analysis Consortium (toim.) ja Euroopan avaruusjärjestö (toim.), Gaia Data Release 2, VizieR Online Data Catalog, (DOI10.26093/CDS/VIZIER.1345) (englanniksi) . Tieto on haettu Wikidatasta.
R. Brent Tully, Hélène M. Courtois, Andrew E. Dolphin, J. Richard Fisher, Philippe Héraudeau, Bradley A. Jacobs, Igor D. Karachentsev, Dmitry Makarov, Lidia Makarova, Sofia Mitronova, Luca Rizzi, Edward J. Shaya, Jenny G. Sorce ja Po-Feng Wu, Cosmicflows-2: the data, The Astronomical Journal, New York, osa146, nro.4, , s.86 (ISSN0004-6256 ja 1538-3881, DOI10.1088/0004-6256/146/4/86, arXiv1307.7213). Tieto on haettu Wikidatasta.
Christopher M. Springob, Martha P. Haynes, Riccardo Giovanelli ja Brian R. Kent, A Digital Archive of H I 21 Centimeter Line Spectra of Optically Targeted Galaxies, The Astrophysical Journal Supplement series, osa160, nro.1, , s.149–162 (ISSN0067-0049 ja 1538-4365, DOI10.1086/431550, arXivastro-ph/0505025). Tieto on haettu Wikidatasta.