x- and xi-scaling of the Nuclear Structure Function at Large x

X-ray and gamma-ray bursts

X-ray and optical observations of the new X-Ray Transient XTE J2123-058

X-ray bursters and explosions on neutron stars

X-ray bursts from XTE J1709-267

X-ray emission from the 63ms radio pulsar PSR J1105-6107

X-ray flaring in LMXBs as a diagnostic of strong changes in the inner disk

X-ray irradiation in low mass X-ray binaries

X-ray mapping of an IR selected star forming region with BeppoSAX NFI's

X-ray observations as evidences of supermassive Kerr black hole

X-ray Properties of Gravitationally Lensed Quasars

X-ray spectra from hot thin plasmas: first results from a new, updated plasma code

X-ray spectral properties of Seyfert 2s observed with BeppoSAX

X-ray spectral variability of NGC 4051

X-ray spectroscopy of the high-mass X-ray binary 4U 1700-37

X-rays from Proton Bremsstrahlung: Evidence from Fusion Reactors and Its Implication in Astrophysics

X-rays from protostars

X-rays from supernova remnants

XCDCC: Core Excitation in the Breakup of Exotic Nuclei

Xi and AntiXi production in Pb+Pb collisions at 40 AGeV at CERN SPS