@ARTICLE{Gawrecká_Marie_DEMOGRAPHIC_2013, author={Gawrecká, Marie}, number={No 4}, journal={Studia Historyczne}, howpublished={online}, year={2013}, publisher={Oddział PAN w Krakowie}, title={DEMOGRAPHIC AND ETHNIC CHANGES OCCURRINGIN OPAVA DURING THE 19TH CENTURY}, URL={http://www.journals.pan.pl/Content/96400/mainfile.pdf}, }