@misc{Śmietana_W._Wolf_1997,
 author={Śmietana, W. and Wajda, J.},
 volume={42},
 number={3},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1997},
 language={eng ; Sum. eng.},
 type={Text},
 title={Wolf number changes in Bieszczady National Park, Poland},
 URL={http://www.rcin.org.pl/Content/12691/PDF/BI002_2613_Cz-40-2_Acta-T42-nr23-241-252_o.pdf},
 keywords={Carpathians, changes, conservation, management, Poland, population dynamics, wilk, Bieszczady, Bieszczady National Park},
}