Adamczyk , Sławomir, and Barbara Surdykowska. “Can Trade Unions Contribute to the Future Competitiveness of the European Steel Industry?”. Warsaw Forum of Economic Sociology 2, no. 4 (December 15, 2011): 29–50. Accessed May 5, 2024. https://econjournals.sgh.waw.pl/wfes/article/view/455.