@article{Delsanto:2007gv,
  author = "Delsanto, Melania  and  Malzac, Julien  and  Ubertini, Pietro  and  Belloni, Tomaso",
  title = "{Spectral variability modes of GX 339-4 in a hard-to-soft state transition}",
  doi = "10.22323/1.033.0076",
  journal = "PoS",
  year = 2007,
  volume = "MQW6",
  pages = "076"
}