@misc{Sowa_Ryszard_Notatka_1971,
 author={Sowa, Ryszard},
 volume={Vol. 13},
 number={1},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Acta Hydrobiologica},
 howpublished={online},
 year={1971},
 publisher={Laboratory of Water Biology of the Polish Academy of Sciences},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={fre},
 type={Text},
 title={Notatka o dwóch gatunkach rodziny Heptageniidae z Karpat polskich (Ephemeroptera)},
 title={Note sur le deux espèces de la famille (Ephemeroptera) des Carpathes polonaises Heptageniidae},
 URL={http://rcin.org.pl/Content/190568/PDF/KR038_183147_r1971-t13-no1_AH-Sowa-29-41.pdf},
}