@misc{Jakubiec_Z._The_1987,
 author={Jakubiec, Z. and Buchalczyk, T.},
 volume={32},
 number={17},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1987},
 language={eng ; sum. eng. ; pol.},
 title={The brown bear in Poland: its history and present numbers},
 type={Text},
 URL={http://www.rcin.org.pl/Content/11228/PDF/BI002_2613_Cz-40-2_Acta-T32-nr17-289-306_o.pdf},
 keywords={Ursus arctos, Poland, occurrence, numbers, występowanie, liczebność, Niedźwiedź brunatny},
}