LULEK, Adam. Information on environmental protection and annual reports of oil companies. Ekonomia i Prawo. Economics and Law, [S. l.], v. 18, n. 4, p. 475–486, 2019. DOI: 10.12775/EiP.2019.031. Disponível em: https://apcz.umk.pl/EiP/article/view/EiP.2019.031. Acesso em: 17 oct. 2026.