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Optical Variability of Quasars: Statistics and Cosmological Properties
Download from doi.orgBL Lacertae Objects and Radio-Loud Quasars within an Evolutionary Unified Scheme
Download from doi.orgUncertainties and Apparent Trends in the Evolution of Quasars
Download from doi.orgFrom local active galactic nuclei to early quasars
Download from doi.orgQuasar Evolution and Gravitational Collapse
Download from doi.orgEvolution of active galaxy nuclei driven by gravitational power
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