SKRZYPEK , Jurand. Energy and Emissions Intensity Analysis of Sectors of the Polish Economy in the Years 1996-2015. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 6, n. 9, p. 78–103, 2018. DOI: 10.18559/SOEP.2018.9.5. Disponível em: https://journals.ue.poznan.pl/soep/article/view/3830. Acesso em: 3 sep. 2026.