@article{Matkowski:2009,
author
=
"J.Matkowski",
title
=
"A functional inequality characterizing convex functions, conjugacy and a generalization of Hölder's and Minkowski's inequalities",
journal
=
"Aequationes Mathematicae",
volume
=
"Vol. 40",
number
=
"no 2-3",
pages
=
"168--180",
year
=
"1990",
}