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Host galaxy-active galactic nucleus alignments in the sloan digital sky survey data release 7
(SPRINGER HEIDELBERG, 2011)
The 2-79 kev x-ray spectrum of the circinus galaxy with nustar, xmm-newton, and chandra: a fully compton-thick active galactic nucleus
(UNIVERSITY OF CHICAGO PRESS, 2014)
The harder when brighter' x-ray behaviour of the low-luminosity active galactic nucleus ngc 7213
(WILEY-BLACKWELL, 2012)
The harder when brighter x-ray behaviour of the low-luminosity active galactic nucleus ngc 7213
(BLACKWELL PUBLISHING ASIA, 2012)