@article{Grochowski:2015,
author
=
"P.Grochowski and S.Beuch and J.Betleja and J.Lewandowska and P.Czechowski",
title
=
"Zimowanie ptaków wodnych na Śląsku w roku 2015",
journal
=
"Ptaki Śląska",
volume
=
"Vol. 22",
number
=
"Vol.",
pages
=
"185--191",
year
=
"2015",
}