@article{Ermash:2013Xi,
  author = "Ermash, Andrey",
  title = "{Luminosity function of Narrow-Line Seyfert galaxies based on SDSS DR7 data}",
  doi = "10.22323/1.169.0064",
  journal = "PoS",
  year = 2013,
  volume = "Seyfert 2012",
  pages = "064"
}