@article{Matkowski:2004,
  author  = "J. Matkowski",
  title   = "Solution of a regularity problem in equality of Cauchy means",
  journal = "Publicationes Mathematicae - Debrecen",
  volume  = "Vol. 64",
  number  = "no 3-4",
  pages   = "391--400",
  year    = "2004",
}