@article{Maciejewski:2011,
  author  = "A. Maciejewski and M. Przybylska",
  title   = "Overview of the differential Galois integrability conditions for non-homogeneous potentials",
  journal = "Banach Center Publication : Algebraic methods in dynamical systems",
  volume  = "Vol. 94",
  pages   = "221--232",
  year    = "2011",
  note    = "Instytut Matematyczny PAN, Warszawa",
}