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Fig. 7.

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EV1 parameter space for the large set of 594 model spectra (grey dots) and the initial set of model spectra (black dots) compared with the contour of the total SDSS quasar sample from Shen & Ho (2014). Two observed spectra used as prototypes for initial ILR and VBLR models (SDSS plate-mjd-fiber: 0666–52149–496 and 2089–53498–385, respectively) are designated with red dots.

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