@article{Maciejewski:2017,
  author  = "A. Maciejewski and M. Przybylska and W. Szumiński",
  title   = "Anisotropic Kepler and anisotropic two fixed centres problems",
  journal = "Celestial Mechanics and Dynamical Astronomy",
  volume  = "Vol. 127",
  number  = "iss. 2",
  pages   = "163--184",
  year    = "2017",
}