EVOLUTION AND LEGAL STATUS OF THE ENERGY EFFICIENCYFIRST PRINCIPLE IN EUROPEAN UNION LAW. Proceedings of the International Scientific Conference "Social Changes in the Global World", [S. l.], v. 13, n. 13, 2026. DOI: 10.46763/. Disponível em: https://js.ugd.edu.mk/index.php/scgw/article/view/8451. Acesso em: 7 okt. 2026.