We present Reverberation Mapping results after monitoring a sample of 17
high-z, high-luminosity quasars for more than 10 years using photometric and
spectroscopic capabilities. Continuum and line emission flux variability is
observed in all quasars. Using cross-correlation analysis we successfully
determine lags between the variations in the continuum and broad emission lines
for several sources. Here we present a highlight of our results and the
determined radius--luminosity relations for Ly_alpha and CIV.Comment: Contributed talk at conference "Quasars at all cosmic epochs", held
in Padova 2-7 April 2017, published in Frontiers in Astronomy and Space
Science
