Catalog of X-ray active galactic nuclei
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https://b2find.eudat.eu/dataset/808b11a0-0a97-5723-a43f-a8db86f81ed7
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A general catalog of active galactic nuclei (AGN) has been created from identified optical sources of X-ray data from the Hamburg-ROSAT Catalog (HRC) and the Byurakan-Hamburg...
