Fig. 11
Fraction of a) FIRST radio-detected quasars and b) radio-loud quasars in luminosity bins for the quasars from the Shen catalogue (blue asterisks), the subsample of Shen quasars with WMg ii< 11 Å and WC iv< 4.8 Å (open blue squares), our WLQ sample (filled red squares), and the WLQ-EWS subsample (magenta framed squares). All samples restricted to 0.6 ≤ z ≤ 2.
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