@article{de Luca:2012,
  author  = "A. de Luca and D. Salvetti and A. Sartori and P. Esposito and A. Tiengo and S. Zane and R. Turolla and F. Pizzolato and R. Mignani and P. Caraveo and S. Mereghetti and G. Bignami",
  title   = "A time-variable, phase-dependent emission line in the X-ray spectrum of the isolated neutron star RX J0822-4300",
  journal = "Monthly Notices of the Royal Astronomical Society",
  volume  = "Vol. 421",
  number  = "no. 1",
  pages   = "L72--L76",
  year    = "2012",
}