@misc{Sidorowicz_J._Czarna_1958, author={Sidorowicz, J.}, volume={2}, number={14}, copyright={Rights Reserved - Free Access}, address={Białowieża}, journal={Acta Theriologica}, howpublished={online}, year={1958}, language={pol}, title={Czarna wiewiórka ( Sciurus vulgaris fuscoater Altum) w Białowieży; Dark phase of the squirrel ( Sciurus vulgaris fuscoater Altum) in Białowieża}, type={Text}, URL={http://rcin.org.pl./Content/7877/PDF/BI002_2613_Cz-40-2_Acta-T2-nr14-295_o.pdf}, keywords={Białowieża, dark phase, Sciurus vulgaris, Sciurus vulgaris fuscoater}, }