@misc{Sawicki_Ludwik_(1893–1972)_Contribution, author={Sawicki, Ludwik (1893–1972)}, volume={55}, copyright={Creative Commons Attribution BY 3.0 PL license}, journal={Spuścizna prof. Ludwika Sawickiego : teczki archiwalne}, howpublished={online}, language={fre}, title={Contribution a l'étude des changements du climat aus temps préhistoriques}, type={Text}, URL={http://www.rcin.org.pl/iae/Content/77835/PDF/WA308_91032_A-TA-LS-55-13_Contribution-a-l-etu_I.pdf}, keywords={prehistory, climat changes in prehistory}, }