@misc{Sawicki_Ludwik_(1893–1972)_Zaproszenie,_1963,
 author={Sawicki, Ludwik (1893–1972)},
 volume={73},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Spuścizna prof. Ludwika Sawickiego : teczki archiwalne},
 howpublished={online},
 year={1963},
 language={pol},
 language={rus},
 title={Zaproszenie, program spotkania itp.},
 type={Text},
}