@article{Matkowski:1996,
  author  = "J. Matkowski and M. Pycia",
  title   = "Positive homogeneous functionals related to $L^p$-norms",
  journal = "Journal of Mathematical Analysis and Applications",
  volume  = "Vol. 200",
  number  = "no 1",
  pages   = "245--253",
  year    = "1996",
}