@misc{Okarma_H._Distribution_1989,
 author={Okarma, H.},
 volume={34},
 number={35},
 copyright={Rights Reserved - Free Access},
 journal={Acta Theriologica},
 address={Białowieża},
 howpublished={online},
 year={1989},
 language={eng ; Sum. eng. ; pol.},
 title={Distribution and numbers of wolves in Poland},
 type={Text},
 URL={http://www.rcin.org.pl/Content/11424/PDF/BI002_2613_Cz-40-2_Acta-T34-nr35-497-503_o.pdf},
 keywords={Canis lupus, distribution, numbers, Poland, rozmieszczenie, liczebność, wilk, Polska},
}