@article{Matkowski:2013,
  author  = "J. Matkowski",
  title   = "Iterations of the mean-type mappings and uniqueness of invariant means",
  journal = "Annales Universitatis Scientiarum Budapestinensis de Rolando Eötvös Nominatae. Sectio Computatorica",
  volume  = "Vol. 41",
  pages   = "145--158",
  year    = "2013",
}