@article{Soldi:20107G,
  author = "Soldi, Simona  and  Ponti, G.  and  Beckmann, Volker  and  Lubinski, Piotr",
  title = "{AGN variability at hard X-rays}",
  doi = "10.22323/1.096.0031",
  journal = "PoS",
  year = 2010,
  volume = "extremesky2009",
  pages = "031"
}