@article{Leoński:1990,
  author  = "W. Leoński",
  title   = "Influence of quantum nature of electromagnetic field on the autoionizing photoelectron spectrum - SU (1,1) state vs. coherent state",
  journal = "Institute of Physics Conference Series",
  volume  = "No 114",
  number  = "sec. 2",
  pages   = "91--94",
  year    = "1990",
}