@article{Walter:20127V,
  author = "Walter, Roland  and  Ricci, Claudio",
  title = "{Reflection in Seyfert galaxies and the unified model}",
  doi = "10.22323/1.147.0046",
  journal = "PoS",
  year = 2012,
  volume = "Extremesky 2011",
  pages = "046"
}