@article{Matkowski:1969,
  author  = "J. Matkowski",
  title   = "On some properties of solutions of a functional equation",
  journal = "Prace Matematyczne / Uniwersytet Šl±ski w Katowicach",
  volume  = "No 1",
  pages   = "79--82",
  year    = "1969",
  note = "",
}