sk.wikipedia.org
sk.wikipedia.org
https://sk.wikipedia.org › wiki › Jerzy_Korolec
sk.wikipedia.org
sk.wikipedia.org
https://sk.wikipedia.org › wiki › Jerzy_Korolec
pl.wikipedia.org
rcin.org.pl
Digital Repository of Scientific Institutes
https://rcin.org.pl › dlibra › publication › edition › 2846 › content
classic.wyborcza.pl
searchworks-lb.stanford.edu
SearchWorks catalog
https://searchworks-lb.stanford.edu › view › 2161390
wikidata.org
wikidata.org
https://www.wikidata.org › wiki › Q61829542
biblio.hiu.cas.cz
Bibliography of the History of the Czech Lands
https://biblio.hiu.cas.cz › records › 45a20568-accc-4f63-a1c4-34848e7df6ba
psychologia.sk
commons.wikimedia.org
commons.wikimedia.org
https://commons.wikimedia.org › wiki › Category:Jerzy_Korolec
researchgate.net
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