@article{Maciejewski:2005,
  author  = "A. Maciejewski and M. Przybylska",
  title   = "Differential Galois approach to the non-integrability of the heavy top problem",
  journal = "Annales de la Faculte des Sciences de Toulouse",
  volume  = "Vol. 14",
  number  = "no 1",
  pages   = "123--160",
  year    = "2005",
}