An Infrared Census of Star Formation in the Horsehead Nebulav. 1373685–3699
Bowler, Brendan P., Waller, William H., Megeath, S. Thomas, Patten, Brian M., and Tamura, Motohide. 2009. "An Infrared Census of Star Formation in the Horsehead Nebula." The Astronomical Journal, 137 3685–3699.