@misc{Witkowski_Andrzej_(1947–2017)_The_1990,
 author={Witkowski, Andrzej (1947–2017)},
 volume={46},
 editor={Research Centre for the Protection of Nature and Natural Resources of the Polish Academy of Sciences},
 number={1},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Let's protect Our Indigenous Nature},
 address={Warszawa},
 address={Kraków},
 howpublished={online},
 year={1990},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 title={The Huchen, Hucho hucho (L.) is endangered in Europe},
 type={Text},
 URL={http://www.rcin.org.pl/Content/73834/PDF/KR038_91112_r1990-t46-no1_ChPO-Witkowski-47-53.pdf},
 keywords={Huchen, salmonid, Hucho hucho},
}