@article{Głazowska:2016,
  author  = "D. Głazowska and J. Matkowski",
  title   = "Subcommuting and commuting real homographic functions",
  journal = "Journal of Difference Equations and Applications",
  volume  = "Vol. 22",
  number  = "no. 2",
  pages   = "177--187",
  year    = "2016",
}