@misc{Sawicki_Ludwik_(1893–1972)_Mapa,
 author={Sawicki, Ludwik (1893–1972)},
 volume={19},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Spuścizna prof. Ludwika Sawickiego : teczki archiwalne},
 howpublished={online},
 language={pol},
 title={Mapa Jaskini Ciemnej : skala 1 : 1.000},
 type={Text},
 URL={http://www.rcin.org.pl/iae/Content/76072/PDF/WA308_88715_A-TA-LS-19-8_Mapa-Jaskini-Ciemnej_I.pdf},
 keywords={archaeological cave sites, Ciemna Cave, Ojców National Park (Poland)},
}