@misc{Perls_Henryk._Wąż_1937,
 author={Perls, Henryk.},
 copyright={Public Domain},
 address={Lwów},
 howpublished={online},
 year={1937},
 publisher={Nakł. Drukarni Naukowej},
 language={pol},
 title={Wąż w wierzeniach ludu polskiego},
 type={Text},
 URL={http://rcin.org.pl/Content/163663/PDF/WA248_193764_F-18732_henrykperls_o.pdf},
 keywords={Polish folk culture, Slavic mythology},
}