@article{Maciejewski:2001,
  author  = "A. Maciejewski and M. Przybylska",
  title   = "Studies of the Hoyer system",
  journal = "Reports on Mathematical Physics",
  volume  = "Vol. 48",
  number  = "no 1/2",
  pages   = "131--138",
  year    = "2001",
}