The Evolutionary Sequence of AGN Activity Koulouridis, E. ; Plionis, M. ; Chavushyan, V. ; Dultzin, D. ; Krongold, Y. ; Georgantopoulos, I. ; Goudis, C. Abstract Publication: 9th International Conference of the Hellenic Astronomical Society Pub Date: July 2010 Bibcode: 2010ASPC..424..295K