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: The Two Micron All Sky Survey (2MASS). In: The Astronomical Journal. únor 2006. DOI10.1086/498708.
