LUCI1 spectra of the five analysed WISSH quasars. The red lines show the resulting best fits for a) SDSS J0745+4734, b) J0900+4215, c) J1201+1206, d) J1326−0005, and e) J1549+1245. Blue and green curves refer to the NLR core and broad emission of both [OIII] and Hβ, respectively. BLR Hβ emission is indicated in orange and FeII emission is indicated in magenta. The cyan curve in panel c) represents the additional components necessary to account for the plateau-like emission feature between 4900–5000 Å in J1201+1206. Grey bands indicate the regions excluded from the fit because of the presence of telluric features.