@article{Matkowski:1996,
  author  = "J. Matkowski",
  title   = "On a characterization of $L^p$-norm and a converse of Minkowski's inequality",
  journal = "Hiroshima Mathematical Journal",
  volume  = "Vol. 26",
  number  = "no 2",
  pages   = "277--287",
  year    = "1996",
}