@article{Kahlig:1994,
  author  = "P. Kahlig and J. Matkowski",
  title   = "On some extensions of the Go│▒b-Schinzel functional equation.",
  journal = "Annales Mathematicae Silesianae : Prace Naukowe Uniwersytetu Žl▒skiego w Katowicach",
  pages   = "13--31",
  year    = "1994",
  note    = "Uniwersytet Žl▒ski, Katowice",
}