Example of BT-settl model normalization. The extinction-corrected Asiago spectrum of DL Tau is shown with the red line, while the BT-settl model normalized to DL Tau at λ = 600 nm is plotted with the blue line. We note the increase of excess emission of DL Tau at wavelengths shorter than about 450 nm. Theveiling-corrected BT-settl model is plotted with the black line. See text for details