@article{Oknyansky:2018PX,
  author = "Oknyansky, Victor L.  and  Malanchev, Konstantin L.  and  Gaskell, C. Martin",
  title = "{Changing-look Narrow-Line Seyfert 1s?}",
  doi = "10.22323/1.328.0012",
  journal = "PoS",
  year = 2018,
  volume = "NLS1-2018",
  pages = "012"
}