@article{Matkowski:2013,
  author  = "J. Matkowski",
  title   = "A remark on periodic entire functions",
  journal = "Annales Mathematicae Silesianae",
  volume  = "nr 27",
  pages   = "89--91",
  year    = "2013",
  note    = "Uniwersytet Šl±ski, Katowice",
}