@article{Gabryś:2009,
author
=
"G.Gabryś and A.Ważna",
title
=
"Subspecies of the European beaver Castor fiber Linnaeus, 1758",
journal
=
"Acta Theriologica",
volume
=
"Vol. 48",
number
=
"no 4",
pages
=
"433--439",
year
=
"2003",
}