@article{Maciejewski:2015,
  author  = "A. Maciejewski and M. Przybylska and T. Stachowiak",
  title   = "An exactly solvable system from quantum optics",
  journal = "Physics Letters A",
  volume  = "Vol. 379",
  number  = "no. 24-25",
  pages   = "1503--1509",
  year    = "2015",
}