@InCollection{Krassowska:2003,
  author    = "D. Krassowska and J. Matkowski",
  title     = "A pair of functional inequalities of iterative type related to a cauchy functional equation",
  pages     = "73--89",
  year      = "2003",
  booktitle = "Functional equations, inequalities and applications, ISBN: 140201578X",
  publisher = "Kluwer Academic Publishers",
  address   = "Dordrecht",
}