@article{Jarczyk:2010,
  author  = "J. Jarczyk",
  title   = "On an equation involving weighted quasi-arithmetic means",
  journal = "Acta Mathematica Hungarica",
  volume  = "Vol. 129",
  number  = "no 1-2",
  pages   = "96--111",
  year    = "2010",
}