@article{Maciejewski:2010,
  author  = "A. Maciejewski and M. Przybylska and H. Yoshida",
  title   = "Necessary conditions for classical super-integrability of a certain family of potentials in constant curvature spaces",
  journal = "Journal of Physics A : Mathematical and Theoretical",
  volume  = "Vol. 43",
  number  = "no 38",
  pages   = "[15]",
  year    = "2010",
}