@misc{Pucek_Z._[Żubry_15.02.1960,
 author={Pucek, Z.},
 copyright={Rights Reserved - Free Access},
 howpublished={online},
 year={15.02.1960},
 title={[Żubry i krowy na wybiegach]},
 keywords={Bison, Bison bonasus bonasus, cow, park},
}