@book{UBHD-67152252,
  author={De Rosa, Gisella},
  title={A comprehensive analysis of optical and near-infrared spectroscopy of z~6 quasars},
  year={2011},
  pages={XI, 127 S.},
  language={eng},
  note={Zsfassung in engl. und dt. Sprache},
  school={Heidelberg, Univ., Diss., 2011},
  keywords={Quasar / Emissionslinie / Schwarzes Loch / Ionisation},
  library={UB [Signatur: 2012 U 27]},
}
@article{UBHD-67792336,
  author={De Rosa, Gisella and Pasquali, Anna and Rix, Hans-Walter},
  title={Evidence for non-evolving Fe II/Mg II ratios in rapidly accreting z ∼ 6 QSOs},
  year={2011},
  pages={1-14},
  language={eng},
  issn={1538-4357},
  volume={739},
  note={Gesehen am 20.03.2015},
  journal={The astrophysical journal},
  doi={10.1088/0004-637X/739/2/56},
}