@misc{Kownacki_Andrzej_Diversity_2000,
 author={Kownacki, Andrzej},
 volume={Vol. 42},
 number={3/4},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Acta Hydrobiologica},
 howpublished={online},
 year={2000},
 publisher={Karol Starmach Institute of Freshwater Biology of the Polish Academy of Sciences},
 language={eng},
 type={Text},
 title={Diversity of benthic macroinvertebrates as a monitoring method for polluted rivers},
 URL={http://www.rcin.org.pl/Content/126520/PDF/KR038_142486_r2000-t42-no3-4_AH-Kownacki-207-214.pdf},
}