Łazor , Jerzy. “From Economic Nationalism to the Open Market. Polish Trade Policy in the 20th and 21st century​ ”. Kwartalnik Kolegium Ekonomiczno-Społecznego. Studia I Prace, no. 3 (35), July 2018, pp. 81-100, https://econjournals.sgh.waw.pl/kwes/article/view/1107.