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Multiwavelength studies of X-ray selected extragalactic sample.

Mickaelian, A. M.; Abrahamyan, H. V.; Paronyan, G. M. +2 more

The joint catalogue of Active Galactic Nuclei selected from optical identifications of X-ray sources was created as a combination of two samples: Hamburg-ROSAT Catalogue (HRC) and Byurakan-Hamburg-ROSAT Catalogue (BHRC). Both are based on optical identifications of X-ray sources from ROSAT catalogues using low-dispersion spectra of Hamburg Quasar …