Hard X-ray spectrum of NGC 4151

Hard X-ray spectrum of Supernova 1987A on day 407

Hard X-ray Spectrum of the Above-the-Looptop Source in Impulsive Solar Flares

Hard X-ray states and radio emission in GRS 1915+105

Hard X-ray tails and cyclotron features in X-ray pulsars

Hard X-ray temporal and spectral observation of an active state of SCO X-1

Hard X-ray timing and spectral characteristics of the energetic pulsar PSR J0205+6449 in supernova remnant 3C58

Hard X-ray timing and spectral characteristics of the energetic pulsar PSR J0205+6449 in supernova remnant 3C 58. An RXTE PCA/HEXTE and XMM-Newton view on the 0.5-250 keV band

Hard X-ray timing and spectral properties of PSR B0540-69

Hard X-ray Timing with EXIST

Hard X-ray Variability in M82: Evidence for a Nascent AGN?

Hard X-ray variability of active galactic nuclei

Hard X-ray Variability of AGN

Hard X-ray variability of Magnetar's Tails observed with INTEGRAL

Hard X-ray variability of the black-hole candidate GRO J0422+32 during its 1992 outburst

Hard X-ray Variability of the Brightest Swift/BAT AGN

Hard X-ray variability of three active galactic nuclei

Hard X-ray variability of X-ray Nova Persei 1992: GRANAT/SIGMA results

Hard X-ray view of Nearby Star Forming Regions

Hard X-ray view of the past activity of Sgr A* in a natural Compton mirror