GARCIA, A. General study of group membership. II - Determination of nearby groups. S.47–90. Astronomy and Astrophysics Supplement [online]. Červenec 1993 [cit. 2018-03-01]. Roč. 100, s. 47–90. Dostupné online. Bibcode1993A&AS..100...47G. (anglicky)
Armando Gil de Paz, Luciana Bianchiová, Patrick Morrissey, Samuel Boissier, David Schiminovich, Barry F. Madore, David Thilker, Timothy Heckman, Alessandro Boselli, Robert Rich, Sándor Szalay, Mark Seibert, Todd A. Small, Bruno Milliard, Tim Conrow, Soo-Chang Rey, I Sok-jong, I Jong-uk, Susan G. Neffová: The GALEX Ultraviolet Atlas of Nearby Galaxies. In: The Astrophysical Journal Supplement Series. prosinec 2007. DOI10.1086/516636.
Robert Kennicutt, Daniela Calzettiová, David Cook, Charles Engelbracht, Janice Leeová, Daniel Dale, Shawn M. Staudaher, Liese van Zee: The Spitzer Local Volume Legacy (LVL) global optical photometry. In: Monthly Notices of the Royal Astronomical Society. září 2014. DOI10.1093/MNRAS/STU1580.
Thomas H. Jarrett, John M. Carpenter, John E. Gizis, Carol Lonsdaleová, John Huchra, Thomas Jay Chester, David G. Monet, J. Davy Kirkpatrick, Kenneth A. Marsh, Roc M. Cutri: The Two Micron All Sky Survey (2MASS). In: The Astronomical Journal. únor 2006. DOI10.1086/498708.