A Spitzer Survey of Young Stellar Clusters Within One Kiloparsec of the Sun: Cluster Core Extraction and Basic Structural Analysisv. 18418–83
Gutermuth, R. A., Megeath, S. Thomas, Myers, Philip C., Allen, L. E., Pipher, J. L., and Fazio, Giovanni G. 2009. "A Spitzer Survey of Young Stellar Clusters Within One Kiloparsec of the Sun: Cluster Core Extraction and Basic Structural Analysis." The Astrophysical Journal Supplement Series, 184 18–83.