@article{Gramacki:2010,
author
=
"A.Gramacki and J.Gramacki and W.Andrzejewski",
title
=
"Probability density functions for calculating approximate aggregates",
journal
=
"Foundations of Computing and Decision Sciences",
volume
=
"Vol. 35",
number
=
"no 4",
pages
=
"223--240",
year
=
"2010",
}