ان‌جی‌سی ۶۶۸ (Persian Wikipedia)

Analysis of information sources in references of the Wikipedia article "ان‌جی‌سی ۶۶۸" in Persian language version.

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arxiv.org

Giuricin, Giuliano; Marinoni, Christian; Ceriani, Lorenzo; Pisani, Armando (November 2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". The Astrophysical Journal (به انگلیسی). 543 (1): 178–194. arXiv:astro-ph/0001140. Bibcode:2000ApJ...543..178G. doi:10.1086/317070. ISSN 0004-637X.

"Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2018-11-14.
"Detailed Object Classifications". ned.ipac.caltech.edu. Retrieved 2018-11-16.

"NASA/IPAC Extragalactic Database". Results for NGC 668. Retrieved 2018-11-13.

"New General Catalog Objects: NGC 650 - 699". cseligman.com (به انگلیسی). Retrieved 2018-11-14.

Giuricin, Giuliano; Marinoni, Christian; Ceriani, Lorenzo; Pisani, Armando (November 2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". The Astrophysical Journal (به انگلیسی). 543 (1): 178–194. arXiv:astro-ph/0001140. Bibcode:2000ApJ...543..178G. doi:10.1086/317070. ISSN 0004-637X.

P., Fouque; E., Gourgoulhon; P., Chamaraux; G., Paturel (May 1992). "Groups of galaxies within 80 Mpc. II - The catalogue of groups and group members". Astronomy and Astrophysics Supplement Series (به انگلیسی). 93: 211. Bibcode:1992A&AS...93..211F. ISSN 0365-0138.
M., Garcia, A. (July 1993). "General study of group membership. II - Determination of nearby groups". Astronomy and Astrophysics Supplement Series (به انگلیسی). 100: 47. Bibcode:1993A&AS..100...47G. ISSN 0365-0138.
Giuricin, Giuliano; Marinoni, Christian; Ceriani, Lorenzo; Pisani, Armando (November 2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". The Astrophysical Journal (به انگلیسی). 543 (1): 178–194. arXiv:astro-ph/0001140. Bibcode:2000ApJ...543..178G. doi:10.1086/317070. ISSN 0004-637X.

Giuricin, Giuliano; Marinoni, Christian; Ceriani, Lorenzo; Pisani, Armando (November 2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". The Astrophysical Journal (به انگلیسی). 543 (1): 178–194. arXiv:astro-ph/0001140. Bibcode:2000ApJ...543..178G. doi:10.1086/317070. ISSN 0004-637X.

P., Fouque; E., Gourgoulhon; P., Chamaraux; G., Paturel (May 1992). "Groups of galaxies within 80 Mpc. II - The catalogue of groups and group members". Astronomy and Astrophysics Supplement Series (به انگلیسی). 93: 211. Bibcode:1992A&AS...93..211F. ISSN 0365-0138.
M., Garcia, A. (July 1993). "General study of group membership. II - Determination of nearby groups". Astronomy and Astrophysics Supplement Series (به انگلیسی). 100: 47. Bibcode:1993A&AS..100...47G. ISSN 0365-0138.
Giuricin, Giuliano; Marinoni, Christian; Ceriani, Lorenzo; Pisani, Armando (November 2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". The Astrophysical Journal (به انگلیسی). 543 (1): 178–194. arXiv:astro-ph/0001140. Bibcode:2000ApJ...543..178G. doi:10.1086/317070. ISSN 0004-637X.