Christopher P. Ahn; Rachael Alexandroff; Carlos Allende Prieto; et al. (19 Nov 2012). "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 (بالإنجليزية). 203 (2): 21. arXiv:1207.7137. Bibcode:2012ApJS..203...21A. DOI:10.1088/0067-0049/203/2/21. ISSN:0067-0049. QID:Q57630701.
doi.org
Christopher P. Ahn; Rachael Alexandroff; Carlos Allende Prieto; et al. (19 Nov 2012). "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 (بالإنجليزية). 203 (2): 21. arXiv:1207.7137. Bibcode:2012ApJS..203...21A. DOI:10.1088/0067-0049/203/2/21. ISSN:0067-0049. QID:Q57630701.
Hewitt A.; Burbidge G. (1991). "An optical catalog of extragalactic emission-line objects similar to quasi-stellar objects". The Astrophysical Journal Supplement Series (بالإنجليزية). 75: 297–356. Bibcode:1991ApJS...75..297H. DOI:10.1086/191533. ISSN:0067-0049. QID:Q66617595.
harvard.edu
ui.adsabs.harvard.edu
Christopher P. Ahn; Rachael Alexandroff; Carlos Allende Prieto; et al. (19 Nov 2012). "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 (بالإنجليزية). 203 (2): 21. arXiv:1207.7137. Bibcode:2012ApJS..203...21A. DOI:10.1088/0067-0049/203/2/21. ISSN:0067-0049. QID:Q57630701.
Hewitt A.; Burbidge G. (1991). "An optical catalog of extragalactic emission-line objects similar to quasi-stellar objects". The Astrophysical Journal Supplement Series (بالإنجليزية). 75: 297–356. Bibcode:1991ApJS...75..297H. DOI:10.1086/191533. ISSN:0067-0049. QID:Q66617595.
Christopher P. Ahn; Rachael Alexandroff; Carlos Allende Prieto; et al. (19 Nov 2012). "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 (بالإنجليزية). 203 (2): 21. arXiv:1207.7137. Bibcode:2012ApJS..203...21A. DOI:10.1088/0067-0049/203/2/21. ISSN:0067-0049. QID:Q57630701.
Hewitt A.; Burbidge G. (1991). "An optical catalog of extragalactic emission-line objects similar to quasi-stellar objects". The Astrophysical Journal Supplement Series (بالإنجليزية). 75: 297–356. Bibcode:1991ApJS...75..297H. DOI:10.1086/191533. ISSN:0067-0049. QID:Q66617595.
worldcat.org
Christopher P. Ahn; Rachael Alexandroff; Carlos Allende Prieto; et al. (19 Nov 2012). "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 (بالإنجليزية). 203 (2): 21. arXiv:1207.7137. Bibcode:2012ApJS..203...21A. DOI:10.1088/0067-0049/203/2/21. ISSN:0067-0049. QID:Q57630701.
Hewitt A.; Burbidge G. (1991). "An optical catalog of extragalactic emission-line objects similar to quasi-stellar objects". The Astrophysical Journal Supplement Series (بالإنجليزية). 75: 297–356. Bibcode:1991ApJS...75..297H. DOI:10.1086/191533. ISSN:0067-0049. QID:Q66617595.