@article{Wróbel:2009,
author
=
"I.Wróbel and Z.Lipnicki",
title
=
"The water resources of Zielona Góra as an element of its sustainable development",
journal
=
"Civil and Environmental Engineering Reports : University of Zielona Góra Press ; Zielona Góra",
volume
=
"no 2",
pages
=
"93--111",
year
=
"2007",
}