@article{article,
  author = {H Lawler and J Rehr and F Vila and SD Dalosto and Eric Shirley and Zachary Levine},
  title = {Optical to UV spectra and birefringence of SiO2 and TiO2: \ first-principles calculations with excitonic effects},
  year = {2008},
  month = {2008-01-01 00:01:00},
  publisher = {Physical Review B (Condensed Matter and Materials Physics)},
  language = {en},
}