@misc{Sidorowicz_J._Geographical_1958,
 author={Sidorowicz, J.},
 volume={2},
 number={7},
 copyright={Rights Reserved - Free Access},
 address={Białowieża},
 journal={Acta Theriologica},
 howpublished={online},
 year={1958},
 language={eng ; sum. pol},
 type={Text},
 title={Geographical variation of the squirrel Sciurus vulgaris L. in Poland; Zmienność geograficzna wiewiórki Sciurus vulgaris L. w Polsce},
 URL={http://rcin.org.pl/Content/7887/PDF/BI002_2613_Cz-40-2_Acta-T2-nr7-141-157_o.pdf},
 keywords={geographical variation, variation, Sciurus vulgaris},
}