@article{Krassowska:2009,
author
=
"D.Krassowska",
title
=
"The Fortieht International Symposium on Functional Equations, august 25 - september 1, 2002, Gronów, Poland",
journal
=
"Aequationes Mathematicae",
volume
=
"Vol. 65",
pages
=
"288--320",
year
=
"2003",
}