GoÅ‚aÅ›, Zbigniew. “The Driving Forces of Change in Energy-Related CO2 Emissions in the Polish Iron and Steel Industry in 1990-2017”. International Journal of Energy Economics and Policy, vol. 10, no. 5, Aug. 2020, pp. 94-102, https://econjournals.com./index.php/ijeep/article/view/9444.