@article{Bernhardt:2011yX,
  author = "Bernhardt, Mike G.  and  Prinz, Tobias  and  Becker, Werner  and  Walter, Ulrich",
  title = "{Timing X-ray Pulsars with Application to Spacecraft Navigation}",
  doi = "10.22323/1.108.0050",
  journal = "PoS",
  year = 2011,
  volume = "HTRA-IV",
  pages = "050"
}