Fading AGN candidates: AGN histories and outflow signatures অনুযায়ী Keel, WC, Lintott, CJ, Maksym, WP, Bennert, VN, Chojnowski, SD, Moiseev, A, Smirnova, A, Schawinski, K, Sartori, LF, Urry, CM, Pancoast, A, Schirmer, M, Scott, B, Showley, C, Flatland, K