Nothing to Hide: An X-ray Survey for Young Stellar Objects in the Pipe NebulaDOI: info:10.1088/0004-637X/719/1/691v. 719691–699
Forbrich, Jan, Posselt, Bettina, Covey, Kevin R., and Lada, Charles J. 2010. "Nothing to Hide: An X-ray Survey for Young Stellar Objects in the Pipe Nebula." The Astrophysical Journal, 719 691–699. https://doi.org/10.1088/0004-637X/719/1/691.