@article{Bursa:2011XZ,
  author = "Bursa, Michal",
  title = "{Epicyclic Frequencies, Resonances \& QPOs}",
  doi = "10.22323/1.122.0033",
  journal = "PoS",
  year = 2011,
  volume = "HTRS 2011",
  pages = "033"
}