Ultraluminous X-Ray Sources Out to z ~ 0.3 in the COSMOS Field Newer:A Runaway Black Hole in COSMOSOlder:The XMM-Newton Wide-field Survey in the Cosmos Field (XMM-COSMOS): Demography and Multiwavelength Properties of Obscured and Unobscured Luminous Active Galactic Nuclei PostedMay 26, 2010 AuthorScienceSites Categories2010