Riccardo Giovanelli; Martha P. Haynes; Christopher M. Springob; Brian R. Kent (septembrie 2005). „A Digital Archive of H I 21 Centimeter Line Spectra of Optically Targeted Galaxies”. The Astrophysical Journal Supplement Series (în engleză). 160 (1): 149–162. arXiv:astro-ph/0505025. Bibcode:2005ApJS..160..149S. doi:10.1086/431550. WikidataQ29305012.
Riccardo Giovanelli; Martha P. Haynes; Christopher M. Springob; Brian R. Kent (septembrie 2005). „A Digital Archive of H I 21 Centimeter Line Spectra of Optically Targeted Galaxies”. The Astrophysical Journal Supplement Series (în engleză). 160 (1): 149–162. arXiv:astro-ph/0505025. Bibcode:2005ApJS..160..149S. doi:10.1086/431550. WikidataQ29305012.
Riccardo Giovanelli; Martha P. Haynes; Christopher M. Springob; Brian R. Kent (septembrie 2005). „A Digital Archive of H I 21 Centimeter Line Spectra of Optically Targeted Galaxies”. The Astrophysical Journal Supplement Series (în engleză). 160 (1): 149–162. arXiv:astro-ph/0505025. Bibcode:2005ApJS..160..149S. doi:10.1086/431550. WikidataQ29305012.
Riccardo Giovanelli; Martha P. Haynes; Christopher M. Springob; Brian R. Kent (septembrie 2005). „A Digital Archive of H I 21 Centimeter Line Spectra of Optically Targeted Galaxies”. The Astrophysical Journal Supplement Series (în engleză). 160 (1): 149–162. arXiv:astro-ph/0505025. Bibcode:2005ApJS..160..149S. doi:10.1086/431550. WikidataQ29305012.