@article{Kollatschny:2016EE,
  author = "Kollatschny, Wolfram  and  Zetzl, Matthias  and  Schartel, Norbert",
  title = "{Multifrequency observations of the extreme X-ray weak quasar PG0043+039}",
  doi = "10.22323/1.250.0030",
  journal = "PoS",
  year = 2016,
  volume = "SSC2015",
  pages = "030"
}