@misc{Gieysztor_Irena_(1914–1999)_Research_1968,
 author={Gieysztor, Irena (1914–1999)},
 volume={18},
 editor={Glinczanka, Agnieszka (1915–1979). Tr.},
 editor={Institute of History of the Polish Academy of Sciences},
 copyright={Rights Reserved - Free Access},
 address={Wrocław},
 journal={Acta Poloniae Historica},
 howpublished={online},
 year={1968},
 publisher={Zakład Narodowy im. Ossolińskich},
 language={eng},
 type={Text},
 title={Research into Demographic History of Poland : a Provisional Summing-up},
 URL={http://www.rcin.org.pl/Content/5529/PDF/WA303_19063_1968-18_APH_01_o.pdf},
 keywords={demography - Poland - history, Poland - history, demographics, Poland - population 1000-1965, Europe - population},
}