@misc{Lesiński_Grzegorz_The_1989, author={Lesiński, Grzegorz}, volume={45}, number={1}, editor={Research Centre for the Protection of Nature and Natural Resources of the Polish Academy of Sciences}, copyright={Creative Commons Attribution BY 3.0 PL license}, journal={Let's protect Our Indigenous Nature}, address={Warszawa}, address={Kraków}, howpublished={online}, year={1989}, publisher={Państwowe Wydawnictwo Naukowe}, language={pol}, type={Text}, title={The Modlin forts as winter shelters of bats are worthy of protection}, URL={http://rcin.org.pl/iop/Content/84498/PDF/KR038_104934_r1989-t45-no1_ChPO-Lesinski-28-35.pdf}, keywords={bats, Chiroptera}, }