@misc{Kowalczyk_J._Bisoniana_1976,
 author={Kowalczyk, J. and Gębczyńska, Z. and Krasińska, M.},
 volume={21},
 number={8},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1976},
 language={eng ; Sum. ang ; pol.},
 type={Text},
 title={Bisoniana LXII. The digestibility of nutrients of natural diet by European bison in different seasons},
 URL={http://www.rcin.org.pl/Content/10376/PDF/BI002_10938_Cz-40-2_Acta-T21-nr8-141-146_o.pdf},
 keywords={Bison bonasus, diet, digestibility, natural diet, nutrient digestibility, żubr, składniki pokarmowe, strawność, pasza},
}