Binggeli، B.؛ Sandage، A.؛ Tammann، G. A. (1 سبتمبر 1985). "Studies of the Virgo Cluster. II - A catalog of 2096 galaxies in the Virgo Cluster area". The Astronomical Journal. ج. 90: 1681–1759. Bibcode:1985AJ.....90.1681B. DOI:10.1086/113874. ISSN:0004-6256.
harvard.edu
ui.adsabs.harvard.edu
Paturel G.; Dubois P.; Petit C.; Woelfel F. (2002), Comparison LEDA/SIMBAD octobre 2002. Catalogue to be published in 2003 (بالإنجليزية), Bibcode:2002LEDA.........0P, QID:Q66470150
Binggeli، B.؛ Sandage، A.؛ Tammann، G. A. (1 سبتمبر 1985). "Studies of the Virgo Cluster. II - A catalog of 2096 galaxies in the Virgo Cluster area". The Astronomical Journal. ج. 90: 1681–1759. Bibcode:1985AJ.....90.1681B. DOI:10.1086/113874. ISSN:0004-6256.
Paturel G.; Dubois P.; Petit C.; Woelfel F. (2002), Comparison LEDA/SIMBAD octobre 2002. Catalogue to be published in 2003 (بالإنجليزية), Bibcode:2002LEDA.........0P, QID:Q66470150
worldcat.org
Binggeli، B.؛ Sandage، A.؛ Tammann، G. A. (1 سبتمبر 1985). "Studies of the Virgo Cluster. II - A catalog of 2096 galaxies in the Virgo Cluster area". The Astronomical Journal. ج. 90: 1681–1759. Bibcode:1985AJ.....90.1681B. DOI:10.1086/113874. ISSN:0004-6256.