Fig. 4.
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Velocity centroid c(1/4) versus L/LEdd for [O III]λ5007 (left) and C IVλ1549 (right). Dark green and blue symbols correspond, respectively, to RQ and RL sources at low-z, while orange (RQ) and red (RL) symbols represent high-z quasars. Within each color, filled squares represent Pop. B sources and the bullets Pop. A quasars.
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