@misc{Jasnowski_Mieczysław_(1920–1993)_Jerzy_1977, author={Jasnowski, Mieczysław (1920–1993)}, volume={33}, number={4}, editor={Research Centre for the Protection of Nature of the Polish Academy of Sciences}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Warszawa}, address={Kraków}, journal={Let's protect Our Indigenous Nature}, howpublished={online}, year={1977}, publisher={Państwowe Wydawnictwo Naukowe}, language={pol}, type={Text}, title={Jerzy Jackowski 1912-1976}, URL={http://rcin.org.pl/iop/Content/70707/PDF/KR038_91623_r1977-t33-no4_ChPO-Jasnowski-42-45.pdf}, }