Fig. 2
Redshift magnitude diagram of the sample. All sources observed by the HES. Filled symbols represent thoes observed by the 6df as well. The dotted vertical line marks the classical demarcation between QSO and Seyfert 1 galaxies. The solid line represents the magnitude limit of the HES (BJ< 17.3), whereas the dot-dashed line marks the 0.5 mag dispersion.
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