X ray spectra from HINOTORI satellite and suprathermal electrons

X ray spectra of bright BL Lacertae objects observed with ROSAT

X ray spectra of cataclysmic variables

X ray spectra of OVV QSOs

X ray spectra of X Per

X ray spectral index variability in NGC 4151

X ray spectral structure of Seyfert galaxies

X ray spectral structure of the Seyfert 2 galaxy NGC 5506

X ray spectral variability in Seyfert 1 galaxies

X ray spectrophotometric remote sensing of diffuse auroral ionization

X ray spectrum and variability of MRK 509 as observed with EXOSAT and GINGA

X ray studies of the Hyades cluster

X ray timing and spectral measurements of the X ray pulsar 4U 1538-52

X ray timing observations and gravitational physics

X ray variability of active galactic nuclei

X raying the interstellar dust

X rays

X rays and crystal: II. The Structures of silicates

X rays and crystal: III. The examination of ternary alloy systems by X rays

X rays and crystal: IV. Order-disorder phenomena in alloys