@misc{Sawicki_Ludwik_(1893–1972)_Luźne,
 author={Sawicki, Ludwik (1893–1972)},
 volume={50},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Spuścizna prof. Ludwika Sawickiego : teczki archiwalne},
 howpublished={online},
 language={pol},
 title={Luźne notatki},
 type={Text},
 URL={http://www.rcin.org.pl/iae/Content/76466/PDF/WA308_90366_A-TA-LS-50-5_Luzne-notatki_I.pdf},
 keywords={Pleistocene geology},
}