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G. Giuricin, C. Marinoni, L. Ceriani, A. Pisani (2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". Astrophysical Journal. 543 (1). ss. 178-194. arXiv:astro-ph/0001140 $2. Bibcode:2000ApJ...543..178G. doi:10.1086/317070.KB1 bakım: Birden fazla ad: yazar listesi (link)
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G. Giuricin, C. Marinoni, L. Ceriani, A. Pisani (2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". Astrophysical Journal. 543 (1). ss. 178-194. arXiv:astro-ph/0001140 $2. Bibcode:2000ApJ...543..178G. doi:10.1086/317070.KB1 bakım: Birden fazla ad: yazar listesi (link)