@inproceedings{Vasco:2011GQ,
  author = "Vasco, Davide  and  Klochkov, Dmitry  and  Staubert, Ruediger",
  title = "{Cyclotron line changes in Her X-1}",
  doi = "10.22323/1.115.0127",
  booktitle = "Proceedings of 8th INTEGRAL Workshop “The Restless Gamma-ray Universe” {\textemdash} PoS(INTEGRAL 2010)",
  year = 2011,
  volume = "115",
  pages = "127"
}