@article{Grinberg:2011TZ,
  author = "Grinberg, Victoria  and  Marcu, Diana M.  and  Pottschmidt, Katja  and  Boeck, Moritz  and  Wilms, Joern  and  Cadolle Bel, Marion  and  Lohfink, Anne M.  and  FUERST, Felix  and  Hanke, Manfred  and  Nowak, Michael A  and  Markoff, Sera  and  Markowitz, Alex  and  Tomsick, John  and  Rodriguez, Jerome  and  Pooley, Guy G  and  Caballero, Isabel",
  title = "{Cygnus X-1: shedding light on the spectral variability of the hard state of black holes}",
  doi = "10.22323/1.115.0133",
  journal = "PoS",
  year = 2011,
  volume = "INTEGRAL 2010",
  pages = "133"
}