@inproceedings{Grinberg:2013+c,
  author = "Grinberg, Victoria",
  title = "{Cygnus X-1: shedding light on the spectral variability of a black hole}",
  doi = "10.22323/1.176.0050",
  booktitle = "Proceedings of  An INTEGRAL view of the high-energy sky (the first 10 years) - 9th INTEGRAL Workshop and celebration of the 10th anniversary of the launch {\textemdash} PoS(INTEGRAL 2012)",
  year = 2013,
  volume = "176",
  pages = "050"
}