MATCZYŃSKI, A. INTRODUCTION OF THE BIO-FUEL ACT FROM THE POINT OF VIEW OF SUSTAINABILITY. Economic and Environmental Studies, [S. l.], v. 6, p. 335–339, 2020. Disponível em: https://czasopisma.uni.opole.pl/index.php/ees/article/view/3126. Acesso em: 12 may. 2025.