@misc{Witkowski_Zbigniew_J._Biodiversity_2002, author={Witkowski, Zbigniew J. and Adamski, Paweł}, volume={Vol. 59 (2)}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Kraków}, journal={Nature Conservation}, howpublished={online}, year={2002}, publisher={Institute of Nature Conservation of the Polish Academy of Sciences}, language={eng}, type={Text}, title={Biodiversity conservation in agriculture: the experience of Poland}, URL={http://rcin.org.pl/Content/116356/PDF/KR038_114552_r2002-t59-no2_NC-Witkowski-99-108.pdf}, }