@book{Kuczma:2012,
author
=
"M.Kuczma and A.Greinert",
title
=
"Civil and Environmental Engineering Reports, ISSN: 2080-5187",
publisher
=
"University of Zielona Góra Press",
address
=
"Zielona Góra",
year
=
"2012",
volume
=
"No. 8-9",
}