XMM-Newton Serendipitous Source Catalogue (1XMM) (XMM-SSC, 2003)

XMM-Newton serendipitous survey. IV (Barcons+, 2007)

XMM-Newton slew survey hard band sources

XMM-Newton Spectral Energy Distribution of a New Candidate Isolated Neutron Star

XMM-Newton Spectroscopy of Jupiter

XMM-Newton Spectroscopy of the Seyfert 1.9 / NEL Galaxy NGC 7314

XMM-Newton Studies of the Gamma-Ray Pulsar PSR J2021+3651 and its Large Nebula

XMM-Newton Studies of the Remarkable Binary Millisecond Pulsar PSR J1614-2230

XMM-Newton study of the spectral variability in NLS1 galaxies

XMM-Newton survey in COSMOS field. IV. (Mainieri+, 2007)

XMM-Newton view of the relativistic Fe Kα feature in the intermediate Seyfert galaxy 4U 1344-60

XMM-Newton view on cluster outskirts

XMM-Newton/2dF survey. IV. (Georgantopoulos+, 2004)

XMM/CDFS AGN intrinsic absorption (Akylas+, 2006)

XNMR: A tool for knowledge bases exploration

XOR at a Single Vertex -- Artificial Dendrites

XORSAT: An Efficient Algorithm for the DIMACS 32-bit Parity Problem

XPath Whole Query Optimization

XPath-Logic and XPathLog: A Logic-Programming Style XML Data Manipulation Language

xPerm: fast index canonicalization for tensor computer algebra