@misc{Pucek_Z._Rzęsorek_1977,
 author={Pucek, Z.},
 copyright={Rights Reserved - Free Access},
 howpublished={online},
 year={1977},
 title={Rzęsorek rzeczek (Neomys fodiens)},
 keywords={Rzęsorek rzeczek (Neomys fodiens)},
}