@misc{Pucek_Z._[Mieszańce_10.03.1961,
 author={Pucek, Z.},
 copyright={Rights Reserved - Restricted Access},
 howpublished={online},
 year={10.03.1961},
 title={[Mieszańce w zagrodzie]},
 keywords={wild boar, pig, hybid, sus scrofa},
}