Waingertner, Przemysław, ed. Polska W Europie Środkowo-Wschodniej W XX Wieku. Aspekty Gospodarcze. Tom III. Vol. 3. Poland and Central and Eastern Europe in the 20th Century. Poland: Lodz University Press, 2020. Accessed January 22, 2026. https://www.press.uni.lodz.pl/index.php/wul/catalog/book/1318.