Tarkowski, Maciej. “Gdańsk and Gdynia Seaports After 25 Years of Economic Transition”. Studies of the Industrial Geography Commission of the Polish Geographical Society 29, no. 2 (June 1, 2015): 147–162. Accessed May 5, 2024. https://prace-kgp.uken.krakow.pl/article/view/2846.