Discovery of heavily-obscured AGN among seven INTEGRAL hard X-ray sources observed by ChandraDOI: info:10.1051/0004-6361:200809528v. 487EDP Sciences509–517
Sazonov, S., Revnivtsev, M., Burenin, R., Churazov, Eugene, Sunyaev, R., Forman, William R., and Murray, Stephen S. 2008. "Discovery of heavily-obscured AGN among seven INTEGRAL hard X-ray sources observed by Chandra." Astronomy and Astrophysics, 487 509–517. https://doi.org/10.1051/0004-6361:200809528.