@article{Grochowski:2016,
author
=
"P.Grochowski and S.Beuch and P.Czechowski and J.Betleja and B.Smyk",
title
=
"Zimowanie ptaków wodnych na Śląsku w latach 2011-2016",
journal
=
"Ptaki Śląska",
volume
=
"Vol. 23",
pages
=
"79--109",
year
=
"2016",
}