@article{Krassowska:2009,
author
=
"D.Krassowska and T.Małolepszy and J.Matkowski",
title
=
"A pair of functional inequalities characterizing polynomials and Bernoulli numbers",
journal
=
"Aequationes Mathematicae",
volume
=
"Vol. 75",
pages
=
"276--288",
year
=
"2008",
}