Tkocz M. A traditional industrial district from the perspective of 25 years of functioning in a market economy in Poland. An example of the Upper Silesian Industrial District. Prace KGP PTG [Internet]. 2015 Mar. 20 [cited 2024 Apr. 30];29(4):112-26. Available from: https://prace-kgp.uken.krakow.pl/article/view/3000