Ignasi Pérez-Ràfols; Hayley Finley; Antonio D. Montero-Dorta; Janine Pforr; Scott W. Fleming; Hong Guo; Olga Zamora; Eduardo Balbinot; Helio J. Rocha-Pinto; Guangtun Zhu (). „The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey”. The Astrophysical Journal Supplement Series (în engleză). 203 (2): 21. arXiv:1207.7137. Bibcode:2012ApJS..203...21A. doi:10.1088/0067-0049/203/2/21. WikidataQ57630701.
Ignasi Pérez-Ràfols; Hayley Finley; Antonio D. Montero-Dorta; Janine Pforr; Scott W. Fleming; Hong Guo; Olga Zamora; Eduardo Balbinot; Helio J. Rocha-Pinto; Guangtun Zhu (). „The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey”. The Astrophysical Journal Supplement Series (în engleză). 203 (2): 21. arXiv:1207.7137. Bibcode:2012ApJS..203...21A. doi:10.1088/0067-0049/203/2/21. WikidataQ57630701.
Ignasi Pérez-Ràfols; Hayley Finley; Antonio D. Montero-Dorta; Janine Pforr; Scott W. Fleming; Hong Guo; Olga Zamora; Eduardo Balbinot; Helio J. Rocha-Pinto; Guangtun Zhu (). „The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey”. The Astrophysical Journal Supplement Series (în engleză). 203 (2): 21. arXiv:1207.7137. Bibcode:2012ApJS..203...21A. doi:10.1088/0067-0049/203/2/21. WikidataQ57630701.
Ignasi Pérez-Ràfols; Hayley Finley; Antonio D. Montero-Dorta; Janine Pforr; Scott W. Fleming; Hong Guo; Olga Zamora; Eduardo Balbinot; Helio J. Rocha-Pinto; Guangtun Zhu (). „The ninth data release of the Sloan Digital Sky Survey: first spectroscopic data from the SDSS-III baryon oscillation spectroscopic survey”. The Astrophysical Journal Supplement Series (în engleză). 203 (2): 21. arXiv:1207.7137. Bibcode:2012ApJS..203...21A. doi:10.1088/0067-0049/203/2/21. WikidataQ57630701.