@misc{Sawicki_Ludwik_(1893–1972)_Stan_1953,
 author={Sawicki, Ludwik (1893–1972)},
 volume={3},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 journal={Acta Geologica Polonica},
 howpublished={online},
 year={1953},
 language={pol},
 title={Stan badań nad wiekiem człowieka kopalnego w Polsce},
 type={Text},
 URL={http://www.rcin.org.pl/iae/Content/68815/PDF/WA308_87052_P103D_Stan-badan-nad_I.pdf},
}