[1]
J. Stepan, “THE IMPACT OF COPPER PRICE VARIATION ON THE ECONOMIC EFFICIENCY AND ENVIRONMENTAL SUSTAINABILITY OF KGHM OPERATIONS”, EiS, vol. 59, no. 4, p. 14, Oct. 2016, Accessed: Nov. 22, 2024. [Online]. Available: https://ekonomiaisrodowisko.pl/journal/article/view/211